** Also affects: gnome-desktop3 (Ubuntu Hirsute)
   Importance: Undecided
       Status: New

** Changed in: gnome-desktop3 (Ubuntu Hirsute)
   Importance: Undecided => High

** Changed in: gnome-desktop3 (Ubuntu Hirsute)
       Status: New => In Progress

** Changed in: gnome-desktop3 (Ubuntu Hirsute)
     Assignee: (unassigned) => Gunnar Hjalmarsson (gunnarhj)

** Description changed:

+ [Impact]
+ 
+ If the dconf key show-all-sources is "true", any attempt to add new
+ input sources via Settings results in a segfault. It means that users
+ can't make use of the so-called "exotic" XKB keyboard layouts.
+ 
+ The proposed upload includes a cherry picked upstream commit which fixes
+ the issue.
+ 
+ [Test Plan]
+ 
+ 1. Enable show-all-sources:
+ 
+    gsettings set org.gnome.desktop.input-sources show-all-sources true
+ 
+ 2. Select Settings -> Region & Language and click the + button to add
+    an input source.
+ 
+ -> Find that g-c-c crashes.
+ 
+ 3. Install the gnome-desktop3 binaries from hirsute-proposed.
+ 
+ 4. Repeat step 2.
+ 
+ -> Find that you are able to add an input source.
+ 
+ [Where problems could occur]
+ 
+ The change is a targeted fix to address the issue at hand. It was
+ committed upstream on April 22, and no reported regression.
+ 
+ [Original description]
+ 
  I've been facing the problems for about 9 months now. Back then I
  thought that maybe getting a new version would solve the problem, but
  turns out it didn't. Whenever I try to add some Input Sources from it
  just crashes.
  
  Reproducing it is very easy: running gnome-control-center, then going to
  Input Sources settings and clicking Add(+) would generate the crash. But
  the weird thing is that I've been unable to reproduce it in VM. And I
  also tried to reinstall most of the packages which, I think if
  changed/misconfigured would cause this but it didn't help. I also tried
  to use debsums to give some clues but didn't find any.
  
  After enough digging, this is what I can retrieve from gdb:
  
- 
  #0  g_str_hash (v=0x506) at ../../../glib/ghash.c:2333
-         p = 0x506 <error: Cannot access memory at address 0x506>
-         h = 5381
+         p = 0x506 <error: Cannot access memory at address 0x506>
+         h = 5381
  #1  0x00007ffff7c6e174 in g_hash_table_lookup_node (hash_return=<synthetic 
pointer>, key=0x506, hash_table=0x5555563a6180 = {...}) at 
../../../glib/ghash.c:472
-         node_hash = <optimized out>
-         hash_value = <optimized out>
-         have_tombstone = 0
-         step = 0
-         node_index = <optimized out>
-         first_tombstone = 0
-         node_hash = <optimized out>
-         __func__ = "g_hash_table_lookup_extended"
+         node_hash = <optimized out>
+         hash_value = <optimized out>
+         have_tombstone = 0
+         step = 0
+         node_index = <optimized out>
+         first_tombstone = 0
+         node_hash = <optimized out>
+         __func__ = "g_hash_table_lookup_extended"
  #2  g_hash_table_lookup_extended (hash_table=0x5555563a6180 = {...}, 
lookup_key=lookup_key@entry=0x506, orig_key=orig_key@entry=0x0, 
value=value@entry=0x7fffffffcbb0) at ../../../glib/ghash.c:1548
-         node_hash = <optimized out>
-         __func__ = "g_hash_table_lookup_extended"
+         node_hash = <optimized out>
+         __func__ = "g_hash_table_lookup_extended"
  #3  0x00007ffff6f03013 in gnome_xkb_info_get_layout_info (self=<optimized 
out>, id=id@entry=0x506 <error: Cannot access memory at address 0x506>, 
display_name=display_name@entry=0x7fffffffcc10, 
short_name=short_name@entry=0x0, xkb_layout=xkb_layout@entry=0x0, 
xkb_variant=xkb_variant@entry=0x0) at ../libgnome-desktop/gnome-xkb-info.c:1042
-         priv = 0x555556395600
-         layout = 0x7ffff6262ba0 <main_arena>
-         __func__ = "gnome_xkb_info_get_layout_info"
+         priv = 0x555556395600
+         layout = 0x7ffff6262ba0 <main_arena>
+         __func__ = "gnome_xkb_info_get_layout_info"
  #4  0x00005555555fe467 in input_source_row_new 
(self=self@entry=0x5555568d22b0, type=type@entry=0x5555556dcac3 "xkb", 
id=id@entry=0x506 <error: Cannot access memory at address 0x506>) at 
../panels/keyboard/cc-input-chooser.c:236
-         display_name = 0x0
-         row = 0x0
-         widget = <optimized out>
+         display_name = 0x0
+         row = 0x0
+         widget = <optimized out>
  #5  0x00005555555fe81d in add_rows_to_table (self=self@entry=0x5555568d22b0, 
info=info@entry=0x555556450320, list=0x555555c82100 = {...}, 
list@entry=0x555555c8bec0 = {...}, type=type@entry=0x5555556dcac3 "xkb", 
default_id=0x0) at ../panels/keyboard/cc-input-chooser.c:723
-         table = 0x555556770000 = {[0x55555657bb00 "cm+mmuock"] = 
0x555556ca91a0, [0x555556506340 "us+3l"] = 0x555556400920, [0x55555656f6f0 
"ph+capewell-dvorak"] = 0x555556cb6f50, [0x55555660caf0 "us+dvorak-l"] = 
0x555556ca9620, [0x55555656cd40 "gb+mac_intl"] = 0x555556cb6950, 
[0x55555650de80 "gh+gillbt"] = 0x555556cb61d0, [0x555556571540 "apl+aplx"] = 
0x555556ca94a0, [0x5555565063a0 "us+3l-cros"] = 0x555556cb64d0, [0x5555565062b0 
"us+carpalx-full-intl"] = 0x555556400aa0, [0x555556506070 "us+sun_type6"] = 
0x555556cb6350, [0x555556505f50 "us+drix"] = 0x555556ca9320, [0x555556506b40 
"cm+dvorak"] = 0x555556cb6dd0, [0x5555564faaf0 "us+dvp"] = 0x555556cb6650, 
[0x5555564faa80 "us+dvorak-classic"] = 0x5555564004a0, [0x5555564fad30 
"us+olpc2"] = 0x555556400c20, [0x55555656f2d0 "ml+us-intl"] = 0x555556400620, 
[0x5555564f9c70 "eu"] = 0x555556400320, [0x555556506310 
"us+carpalx-full-altgr-intl"] = 0x5555564007a0, [0x55555656c390 "gb+intl"] = 
0x555556ca97a0, [0x555556506fc0 "ca+eng"] = 0x555556cb67d0, [0x5555565714a0 
"apl+aplplusII"] = 0x555556400f20, [0x5555564fafb0 "us+norman"] = 
0x555556400da0, [0x55555660ca90 "us+dvorak-intl"] = 0x555556cb6ad0, 
[0x555556506140 "us+carpalx-intl"] = 0x555556cb6c50}
-         row = <optimized out>
-         id = 0x506 <error: Cannot access memory at address 0x506>
+         table = 0x555556770000 = {[0x55555657bb00 "cm+mmuock"] = 
0x555556ca91a0, [0x555556506340 "us+3l"] = 0x555556400920, [0x55555656f6f0 
"ph+capewell-dvorak"] = 0x555556cb6f50, [0x55555660caf0 "us+dvorak-l"] = 
0x555556ca9620, [0x55555656cd40 "gb+mac_intl"] = 0x555556cb6950, 
[0x55555650de80 "gh+gillbt"] = 0x555556cb61d0, [0x555556571540 "apl+aplx"] = 
0x555556ca94a0, [0x5555565063a0 "us+3l-cros"] = 0x555556cb64d0, [0x5555565062b0 
"us+carpalx-full-intl"] = 0x555556400aa0, [0x555556506070 "us+sun_type6"] = 
0x555556cb6350, [0x555556505f50 "us+drix"] = 0x555556ca9320, [0x555556506b40 
"cm+dvorak"] = 0x555556cb6dd0, [0x5555564faaf0 "us+dvp"] = 0x555556cb6650, 
[0x5555564faa80 "us+dvorak-classic"] = 0x5555564004a0, [0x5555564fad30 
"us+olpc2"] = 0x555556400c20, [0x55555656f2d0 "ml+us-intl"] = 0x555556400620, 
[0x5555564f9c70 "eu"] = 0x555556400320, [0x555556506310 
"us+carpalx-full-altgr-intl"] = 0x5555564007a0, [0x55555656c390 "gb+intl"] = 
0x555556ca97a0, [0x555556506fc0 "ca+eng"] = 0x555556cb67d0, [0x5555565714a0 
"apl+aplplusII"] = 0x555556400f20, [0x5555564fafb0 "us+norman"] = 
0x555556400da0, [0x55555660ca90 "us+dvorak-intl"] = 0x555556cb6ad0, 
[0x555556506140 "us+carpalx-intl"] = 0x555556cb6c50}
+         row = <optimized out>
+         id = 0x506 <error: Cannot access memory at address 0x506>
  #6  0x00005555555ffb78 in get_locale_infos (self=0x5555568d22b0) at 
../panels/keyboard/cc-input-chooser.c:950
-         country_code = 0x55555680eb50 "BW"
-         simple_locale = 0x55555680eb70 "en_BW.UTF-8"
-         tmp = 0x5555568acf70 "English (Botswana)"
-         type = 0x0
-         language_layouts = 0x555555c8bec0
-         lang_code = 0x55555680eb30 "en"
-         id = 0x0
-         layouts_with_locale = 0x555556772e40
-         info = 0x555556450320
-         locale = 0x55555680e950
-         all_layouts = 0x0
-         locale_ids = 0x55555680e950
-         l = <optimized out>
-         self = 0x5555568d22b0
-         error = 0x0
+         country_code = 0x55555680eb50 "BW"
+         simple_locale = 0x55555680eb70 "en_BW.UTF-8"
+         tmp = 0x5555568acf70 "English (Botswana)"
+         type = 0x0
+         language_layouts = 0x555555c8bec0
+         lang_code = 0x55555680eb30 "en"
+         id = 0x0
+         layouts_with_locale = 0x555556772e40
+         info = 0x555556450320
+         locale = 0x55555680e950
+         all_layouts = 0x0
+         locale_ids = 0x55555680e950
+         l = <optimized out>
+         self = 0x5555568d22b0
+         error = 0x0
  #7  cc_input_chooser_new (is_login=<optimized out>, xkb_info=<optimized out>, 
ibus_engines=<optimized out>) at ../panels/keyboard/cc-input-chooser.c:1068
-         self = 0x5555568d22b0
-         error = 0x0
+         self = 0x5555568d22b0
+         error = 0x0
  #8  0x00005555555f6ebc in show_input_chooser (self=0x555556396200) at 
../panels/keyboard/cc-input-list-box.c:443
-         chooser = <optimized out>
+         chooser = <optimized out>
  #9  0x00007ffff7d7d61e in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x55555639a220, return_value=<optimized out>, instance=<optimized 
out>, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized 
out>, param_types=0x555556200930) at ../../../gobject/gmarshal.c:1910
-         data1 = 0x555556396200
-         data2 = <optimized out>
-         callback = 0x5555555f6fe0 <input_row_activated_cb>
-         arg0 = 0x555556277a50
-         args_copy = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 
0x7fffffffd060, reg_save_area = 0x7fffffffcfa0}}
+         data1 = 0x555556396200
+         data2 = <optimized out>
+         callback = 0x5555555f6fe0 <input_row_activated_cb>
+         arg0 = 0x555556277a50
+         args_copy = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 
0x7fffffffd060, reg_save_area = 0x7fffffffcfa0}}
  #10 0x00007ffff7d9c724 in _g_closure_invoke_va (param_types=0x555556200930, 
n_params=1, args=0x7fffffffcf80, instance=0x555556396200, 
return_value=<optimized out>, closure=<optimized out>) at 
../../../gobject/gclosure.c:873
-         marshal = <optimized out>
-         marshal_data = <optimized out>
-         in_marshal = 0
-         real_closure = <optimized out>
-         return_accu = <optimized out>
-         accu = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, v_long = 0, 
v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 
0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 
0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
-         accumulator = 0x0
-         emission = Python Exception <class 'TypeError'> can only concatenate 
str (not "NoneType") to str: 
+         marshal = <optimized out>
+         marshal_data = <optimized out>
+         in_marshal = 0
+         real_closure = <optimized out>
+         return_accu = <optimized out>
+         accu = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, v_long = 0, 
v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 
0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 
0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
+         accumulator = 0x0
+         emission = Python Exception <class 'TypeError'> can only concatenate 
str (not "NoneType") to str:
  {next = 0x7fffffffd160, instance = 0x555556396200, ihint = {signal_id = 313, 
detail = 0, run_type = (G_SIGNAL_RUN_FIRST | G_SIGNAL_ACCUMULATOR_FIRST_RUN)}, 
state = EMISSION_RUN, chain_type = }
-         signal_id = 313
-         instance_type = <optimized out>
-         emission_return = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, 
v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, 
v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, 
v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
-         rtype = 0x4
-         static_scope = 0
-         fastpath_handler = <optimized out>
-         closure = <optimized out>
-         run_type = <optimized out>
-         hlist = <optimized out>
-         l = <optimized out>
-         fastpath = 1
-         instance_and_params = <optimized out>
-         signal_return_type = <optimized out>
-         param_values = <optimized out>
-         node = <optimized out>
-         i = <optimized out>
-         n_params = <optimized out>
-         __func__ = "g_signal_emit_valist"
+         signal_id = 313
+         instance_type = <optimized out>
+         emission_return = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, 
v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, 
v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, 
v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
+         rtype = 0x4
+         static_scope = 0
+         fastpath_handler = <optimized out>
+         closure = <optimized out>
+         run_type = <optimized out>
+         hlist = <optimized out>
+         l = <optimized out>
+         fastpath = 1
+         instance_and_params = <optimized out>
+         signal_return_type = <optimized out>
+         param_values = <optimized out>
+         node = <optimized out>
+         i = <optimized out>
+         n_params = <optimized out>
+         __func__ = "g_signal_emit_valist"
  #11 g_signal_emit_valist (instance=0x555556396200, signal_id=<optimized out>, 
detail=<optimized out>, var_args=var_args@entry=0x7fffffffcf80) at 
../../../gobject/gsignal.c:3406
-         return_accu = <optimized out>
-         accu = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, v_long = 0, 
v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 
0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 
0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
-         accumulator = 0x0
-         emission = Python Exception <class 'TypeError'> can only concatenate 
str (not "NoneType") to str: 
+         return_accu = <optimized out>
+         accu = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, v_long = 0, 
v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 
0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 
0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
+         accumulator = 0x0
+         emission = Python Exception <class 'TypeError'> can only concatenate 
str (not "NoneType") to str:
  {next = 0x7fffffffd160, instance = 0x555556396200, ihint = {signal_id = 313, 
detail = 0, run_type = (G_SIGNAL_RUN_FIRST | G_SIGNAL_ACCUMULATOR_FIRST_RUN)}, 
state = EMISSION_RUN, chain_type = }
-         signal_id = 313
-         instance_type = <optimized out>
-         emission_return = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, 
v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, 
v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, 
v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
-         rtype = 0x4
-         static_scope = 0
-         fastpath_handler = <optimized out>
-         closure = <optimized out>
-         run_type = <optimized out>
-         hlist = <optimized out>
-         l = <optimized out>
-         fastpath = 1
-         instance_and_params = <optimized out>
-         signal_return_type = <optimized out>
-         param_values = <optimized out>
-         node = <optimized out>
-         i = <optimized out>
-         n_params = <optimized out>
-         __func__ = "g_signal_emit_valist"
+         signal_id = 313
+         instance_type = <optimized out>
+         emission_return = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, 
v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, 
v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, 
v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
+         rtype = 0x4
+         static_scope = 0
+         fastpath_handler = <optimized out>
+         closure = <optimized out>
+         run_type = <optimized out>
+         hlist = <optimized out>
+         l = <optimized out>
+         fastpath = 1
+         instance_and_params = <optimized out>
+         signal_return_type = <optimized out>
+         param_values = <optimized out>
+         node = <optimized out>
+         i = <optimized out>
+         n_params = <optimized out>
+         __func__ = "g_signal_emit_valist"
  #12 0x00007ffff7d9c893 in g_signal_emit (instance=<optimized out>, 
signal_id=<optimized out>, detail=<optimized out>) at 
../../../gobject/gsignal.c:3553
-         var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 
0x7fffffffd060, reg_save_area = 0x7fffffffcfa0}}
+         var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 
0x7fffffffd060, reg_save_area = 0x7fffffffcfa0}}
  #13 0x00007ffff7626199 in gtk_list_box_select_and_activate_full 
(grab_focus=1, row=0x555556277a50, box=0x555556396200) at 
../../../../gtk/gtklistbox.c:1820
-         focus_on_click = 1
-         priv = 0x555556396010
+         focus_on_click = 1
+         priv = 0x555556396010
  #14 gtk_list_box_select_and_activate_full (grab_focus=1, row=0x555556277a50, 
box=0x555556396200) at ../../../../gtk/gtklistbox.c:1812
-         focus_on_click = 1
-         priv = 0x555556396010
+         focus_on_click = 1
+         priv = 0x555556396010
  #15 gtk_list_box_multipress_gesture_released (gesture=<optimized out>, 
n_press=1, x=<optimized out>, y=<optimized out>, box=0x555556396200) at 
../../../../gtk/gtklistbox.c:2016
-         focus_on_click = 1
-         priv = 0x555556396010
+         focus_on_click = 1
+         priv = 0x555556396010
  #16 0x00007ffff77d264b in _gtk_marshal_VOID__INT_DOUBLE_DOUBLEv 
(closure=<optimized out>, return_value=<optimized out>, instance=<optimized 
out>, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized 
out>, param_types=0x5555561382d0) at gtkmarshalers.c:4803
-         data1 = <optimized out>
-         data2 = <optimized out>
-         callback = <optimized out>
-         arg0 = 1286
-         arg1 = 2.1137067449068142e-314
-         arg2 = 1.4951811470334148e+248
-         args_copy = {{gp_offset = 32, fp_offset = 80, overflow_arg_area = 
0x7fffffffd340, reg_save_area = 0x7fffffffd280}}
+         data1 = <optimized out>
+         data2 = <optimized out>
+         callback = <optimized out>
+         arg0 = 1286
+         arg1 = 2.1137067449068142e-314
+         arg2 = 1.4951811470334148e+248
+         args_copy = {{gp_offset = 32, fp_offset = 80, overflow_arg_area = 
0x7fffffffd340, reg_save_area = 0x7fffffffd280}}
  #17 0x00007ffff7d9c724 in _g_closure_invoke_va (param_types=0x5555561382d0, 
n_params=3, args=0x7fffffffd260, instance=0x5555562f7780, 
return_value=<optimized out>, closure=<optimized out>) at 
../../../gobject/gclosure.c:873
-         marshal = <optimized out>
-         marshal_data = <optimized out>
-         in_marshal = 0
-         real_closure = <optimized out>
-         return_accu = <optimized out>
-         accu = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, v_long = 0, 
v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 
0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 
0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
-         accumulator = 0x0
-         emission = Python Exception <class 'TypeError'> can only concatenate 
str (not "NoneType") to str: 
+         marshal = <optimized out>
+         marshal_data = <optimized out>
+         in_marshal = 0
+         real_closure = <optimized out>
+         return_accu = <optimized out>
+         accu = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, v_long = 0, 
v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 
0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 
0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
+         accumulator = 0x0
+         emission = Python Exception <class 'TypeError'> can only concatenate 
str (not "NoneType") to str:
  {next = 0x7fffffffd480, instance = 0x5555562f7780, ihint = {signal_id = 253, 
detail = 0, run_type = (G_SIGNAL_RUN_FIRST | G_SIGNAL_ACCUMULATOR_FIRST_RUN)}, 
state = EMISSION_RUN, chain_type = }
-         signal_id = 253
-         instance_type = <optimized out>
-         emission_return = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, 
v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, 
v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, 
v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
-         rtype = 0x4
-         static_scope = 0
-         fastpath_handler = <optimized out>
-         closure = <optimized out>
-         run_type = <optimized out>
-         hlist = <optimized out>
-         l = <optimized out>
-         fastpath = 1
-         instance_and_params = <optimized out>
-         signal_return_type = <optimized out>
-         param_values = <optimized out>
-         node = <optimized out>
-         i = <optimized out>
-         n_params = <optimized out>
-         __func__ = "g_signal_emit_valist"
+         signal_id = 253
+         instance_type = <optimized out>
+         emission_return = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, 
v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, 
v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, 
v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
+         rtype = 0x4
+         static_scope = 0
+         fastpath_handler = <optimized out>
+         closure = <optimized out>
+         run_type = <optimized out>
+         hlist = <optimized out>
+         l = <optimized out>
+         fastpath = 1
+         instance_and_params = <optimized out>
+         signal_return_type = <optimized out>
+         param_values = <optimized out>
+         node = <optimized out>
+         i = <optimized out>
+         n_params = <optimized out>
+         __func__ = "g_signal_emit_valist"
  #18 g_signal_emit_valist (instance=0x5555562f7780, signal_id=<optimized out>, 
detail=<optimized out>, var_args=var_args@entry=0x7fffffffd260) at 
../../../gobject/gsignal.c:3406
-         return_accu = <optimized out>
-         accu = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, v_long = 0, 
v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 
0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 
0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
-         accumulator = 0x0
-         emission = Python Exception <class 'TypeError'> can only concatenate 
str (not "NoneType") to str: 
+         return_accu = <optimized out>
+         accu = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, v_long = 0, 
v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 
0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 
0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
+         accumulator = 0x0
+         emission = Python Exception <class 'TypeError'> can only concatenate 
str (not "NoneType") to str:
  {next = 0x7fffffffd480, instance = 0x5555562f7780, ihint = {signal_id = 253, 
detail = 0, run_type = (G_SIGNAL_RUN_FIRST | G_SIGNAL_ACCUMULATOR_FIRST_RUN)}, 
state = EMISSION_RUN, chain_type = }
-         signal_id = 253
-         instance_type = <optimized out>
-         emission_return = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, 
v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, 
v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, 
v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
-         rtype = 0x4
-         static_scope = 0
-         fastpath_handler = <optimized out>
-         closure = <optimized out>
-         run_type = <optimized out>
-         hlist = <optimized out>
-         l = <optimized out>
-         fastpath = 1
-         instance_and_params = <optimized out>
-         signal_return_type = <optimized out>
-         param_values = <optimized out>
-         node = <optimized out>
-         i = <optimized out>
-         n_params = <optimized out>
-         __func__ = "g_signal_emit_valist"
+         signal_id = 253
+         instance_type = <optimized out>
+         emission_return = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, 
v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, 
v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, 
v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
+         rtype = 0x4
+         static_scope = 0
+         fastpath_handler = <optimized out>
+         closure = <optimized out>
+         run_type = <optimized out>
+         hlist = <optimized out>
+         l = <optimized out>
+         fastpath = 1
+         instance_and_params = <optimized out>
+         signal_return_type = <optimized out>
+         param_values = <optimized out>
+         node = <optimized out>
+         i = <optimized out>
+         n_params = <optimized out>
+         __func__ = "g_signal_emit_valist"
  #19 0x00007ffff7d9c893 in g_signal_emit 
(instance=instance@entry=0x5555562f7780, signal_id=<optimized out>, 
detail=detail@entry=0) at ../../../gobject/gsignal.c:3553
-         var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 
0x7fffffffd340, reg_save_area = 0x7fffffffd280}}
+         var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 
0x7fffffffd340, reg_save_area = 0x7fffffffd280}}
  #20 0x00007ffff75e6e4c in gtk_gesture_multi_press_end 
(gesture=gesture@entry=0x5555562f7780, sequence=sequence@entry=0x0) at 
../../../../gtk/gtkgesturemultipress.c:287
-         multi_press = 0x5555562f7780
-         priv = 0x5555562f76d0
-         current = 0x0
-         x = 313
-         y = 121
-         interpreted = 1
-         state = <optimized out>
+         multi_press = 0x5555562f7780
+         priv = 0x5555562f76d0
+         current = 0x0
+         x = 313
+         y = 121
+         interpreted = 1
+         state = <optimized out>
  #21 0x00007ffff7d832df in g_cclosure_marshal_VOID__BOXEDv 
(closure=0x555556123620, return_value=<optimized out>, instance=<optimized 
out>, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized 
out>, param_types=0x55555613bbf0) at ../../../gobject/gmarshal.c:1686
-         data1 = 0x5555562f7780
-         data2 = <optimized out>
-         callback = 0x7ffff75e6da0 <gtk_gesture_multi_press_end>
-         arg0 = 0x0
-         args_copy = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 
0x7fffffffd660, reg_save_area = 0x7fffffffd5a0}}
+         data1 = 0x5555562f7780
+         data2 = <optimized out>
+         callback = 0x7ffff75e6da0 <gtk_gesture_multi_press_end>
+         arg0 = 0x0
+         args_copy = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 
0x7fffffffd660, reg_save_area = 0x7fffffffd5a0}}
  #22 0x00007ffff7d9c724 in _g_closure_invoke_va (param_types=0x55555613bbf0, 
n_params=1, args=0x7fffffffd580, instance=0x5555562f7780, 
return_value=<optimized out>, closure=<optimized out>) at 
../../../gobject/gclosure.c:873
-         marshal = <optimized out>
-         marshal_data = <optimized out>
-         in_marshal = 0
-         real_closure = <optimized out>
-         return_accu = <optimized out>
-         accu = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, v_long = 0, 
v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 
0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 
0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
-         accumulator = 0x0
-         emission = Python Exception <class 'TypeError'> can only concatenate 
str (not "NoneType") to str: 
+         marshal = <optimized out>
+         marshal_data = <optimized out>
+         in_marshal = 0
+         real_closure = <optimized out>
+         return_accu = <optimized out>
+         accu = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, v_long = 0, 
v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 
0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 
0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
+         accumulator = 0x0
+         emission = Python Exception <class 'TypeError'> can only concatenate 
str (not "NoneType") to str:
  {next = 0x7fffffffd870, instance = 0x5555562f7780, ihint = {signal_id = 248, 
detail = 0, run_type = (G_SIGNAL_RUN_LAST | G_SIGNAL_ACCUMULATOR_FIRST_RUN)}, 
state = EMISSION_RUN, chain_type = }
-         signal_id = 248
-         instance_type = <optimized out>
-         emission_return = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, 
v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, 
v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, 
v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
-         rtype = 0x4
-         static_scope = 0
-         fastpath_handler = <optimized out>
-         closure = <optimized out>
-         run_type = <optimized out>
-         hlist = <optimized out>
-         l = <optimized out>
-         fastpath = 1
-         instance_and_params = <optimized out>
-         signal_return_type = <optimized out>
-         param_values = <optimized out>
-         node = <optimized out>
-         i = <optimized out>
-         n_params = <optimized out>
-         __func__ = "g_signal_emit_valist"
+         signal_id = 248
+         instance_type = <optimized out>
+         emission_return = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, 
v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, 
v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, 
v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
+         rtype = 0x4
+         static_scope = 0
+         fastpath_handler = <optimized out>
+         closure = <optimized out>
+         run_type = <optimized out>
+         hlist = <optimized out>
+         l = <optimized out>
+         fastpath = 1
+         instance_and_params = <optimized out>
+         signal_return_type = <optimized out>
+         param_values = <optimized out>
+         node = <optimized out>
+         i = <optimized out>
+         n_params = <optimized out>
+         __func__ = "g_signal_emit_valist"
  #23 g_signal_emit_valist (instance=0x5555562f7780, signal_id=<optimized out>, 
detail=<optimized out>, var_args=var_args@entry=0x7fffffffd580) at 
../../../gobject/gsignal.c:3406
-         return_accu = <optimized out>
-         accu = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, v_long = 0, 
v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 
0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 
0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
-         accumulator = 0x0
-         emission = Python Exception <class 'TypeError'> can only concatenate 
str (not "NoneType") to str: 
+         return_accu = <optimized out>
+         accu = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, v_long = 0, 
v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 
0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 
0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
+         accumulator = 0x0
+         emission = Python Exception <class 'TypeError'> can only concatenate 
str (not "NoneType") to str:
  {next = 0x7fffffffd870, instance = 0x5555562f7780, ihint = {signal_id = 248, 
detail = 0, run_type = (G_SIGNAL_RUN_LAST | G_SIGNAL_ACCUMULATOR_FIRST_RUN)}, 
state = EMISSION_RUN, chain_type = }
-         signal_id = 248
-         instance_type = <optimized out>
-         emission_return = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, 
v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, 
v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, 
v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
-         rtype = 0x4
-         static_scope = 0
-         fastpath_handler = <optimized out>
-         closure = <optimized out>
-         run_type = <optimized out>
-         hlist = <optimized out>
-         l = <optimized out>
-         fastpath = 1
-         instance_and_params = <optimized out>
-         signal_return_type = <optimized out>
-         param_values = <optimized out>
-         node = <optimized out>
-         i = <optimized out>
-         n_params = <optimized out>
-         __func__ = "g_signal_emit_valist"
+         signal_id = 248
+         instance_type = <optimized out>
+         emission_return = {g_type = 0x0, data = {{v_int = 0, v_uint = 0, 
v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, 
v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, 
v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
+         rtype = 0x4
+         static_scope = 0
+         fastpath_handler = <optimized out>
+         closure = <optimized out>
+         run_type = <optimized out>
+         hlist = <optimized out>
+         l = <optimized out>
+         fastpath = 1
+         instance_and_params = <optimized out>
+         signal_return_type = <optimized out>
+         param_values = <optimized out>
+         node = <optimized out>
+         i = <optimized out>
+         n_params = <optimized out>
+         __func__ = "g_signal_emit_valist"
  #24 0x00007ffff7d9c893 in g_signal_emit 
(instance=instance@entry=0x5555562f7780, signal_id=<optimized out>, 
detail=detail@entry=0) at ../../../gobject/gsignal.c:3553
-         var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 
0x7fffffffd660, reg_save_area = 0x7fffffffd5a0}}
+         var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 
0x7fffffffd660, reg_save_area = 0x7fffffffd5a0}}
  #25 0x00007ffff75de78b in _gtk_gesture_set_recognized (sequence=0x0, 
recognized=0, gesture=0x5555562f7780) at ../../../../gtk/gtkgesture.c:346
-         priv = <optimized out>
-         priv = 0x5555562f7730
-         has_matching_touchpoints = 0
+         priv = <optimized out>
+         priv = 0x5555562f7730
+         has_matching_touchpoints = 0
  #26 _gtk_gesture_check_recognized (gesture=gesture@entry=0x5555562f7780, 
sequence=sequence@entry=0x0) at ../../../../gtk/gtkgesture.c:387
-         priv = 0x5555562f7730
-         has_matching_touchpoints = 0
+         priv = 0x5555562f7730
+         has_matching_touchpoints = 0
  #27 0x00007ffff75e668b in gtk_gesture_handle_event (event=0x555556402a80, 
controller=0x5555562f7780) at ../../../../gtk/gtkgesture.c:778
-         was_recognized = 1
-         sequence = 0x0
-         priv = 0x5555562f7730
-         gesture = 0x5555562f7780
-         source_device = <optimized out>
+         was_recognized = 1
+         sequence = 0x0
+         priv = 0x5555562f7730
+         gesture = 0x5555562f7780
+         source_device = <optimized out>
  #28 gtk_gesture_handle_event (controller=0x5555562f7780, 
event=0x555556402a80) at ../../../../gtk/gtkgesture.c:713
-         gesture = 0x5555562f7780
-         source_device = <optimized out>
+         gesture = 0x5555562f7780
+         source_device = <optimized out>
  #29 0x00007ffff75e7293 in gtk_gesture_single_handle_event 
(controller=0x5555562f7780, event=0x555556402a80) at 
../../../../gtk/gtkgesturesingle.c:222
-         sequence = <optimized out>
-         priv = 0x5555562f7710
-         source_device = <optimized out>
-         source = GDK_SOURCE_MOUSE
-         button = <optimized out>
-         i = <optimized out>
-         retval = <optimized out>
-         test_touchscreen = <optimized out>
+         sequence = <optimized out>
+         priv = 0x5555562f7710
+         source_device = <optimized out>
+         source = GDK_SOURCE_MOUSE
+         button = <optimized out>
+         i = <optimized out>
+         retval = <optimized out>
+         test_touchscreen = <optimized out>
  #30 0x00007ffff75adec0 in gtk_event_controller_handle_event 
(controller=0x5555562f7780, event=0x555556402a80) at 
../../../../gtk/gtkeventcontroller.c:230
-         controller_class = 0x555556137fa0
-         retval = 0
-         __func__ = "gtk_event_controller_handle_event"
+         controller_class = 0x555556137fa0
+         retval = 0
+         __func__ = "gtk_event_controller_handle_event"
  #31 0x00007ffff7781405 in _gtk_widget_run_controllers (widget=0x555556396200, 
event=0x555556402a80, phase=GTK_PHASE_BUBBLE) at 
../../../../gtk/gtkwidget.c:7443
-         controller_phase = <optimized out>
-         next = 0x0
-         data = 0x555556395120
-         handled = 0
-         priv = 0x555556396110
-         l = <optimized out>
+         controller_phase = <optimized out>
+         next = 0x0
+         data = 0x555556395120
+         handled = 0
+         priv = 0x555556396110
+         l = <optimized out>
  #32 0x00007ffff77c8898 in _gtk_marshal_BOOLEAN__BOXEDv 
(closure=0x555555b69280, return_value=0x7fffffffd8c0, instance=<optimized out>, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555b8a420) at gtkmarshalers.c:129
-         data1 = 0x555556396200
-         data2 = <optimized out>
-         callback = 0x7ffff7781730 <gtk_widget_real_button_event>
-         v_return = <optimized out>
-         arg0 = 0x555556402a80
-         args_copy = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 
0x7fffffffda50, reg_save_area = 0x7fffffffd990}}
-         __func__ = "_gtk_marshal_BOOLEAN__BOXEDv"
+         data1 = 0x555556396200
+         data2 = <optimized out>
+         callback = 0x7ffff7781730 <gtk_widget_real_button_event>
+         v_return = <optimized out>
+         arg0 = 0x555556402a80
+         args_copy = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 
0x7fffffffda50, reg_save_area = 0x7fffffffd990}}
+         __func__ = "_gtk_marshal_BOOLEAN__BOXEDv"
  #33 0x00007ffff7d9c724 in _g_closure_invoke_va (param_types=0x555555b8a420, 
n_params=1, args=0x7fffffffd970, instance=0x555556396200, 
return_value=<optimized out>, closure=<optimized out>) at 
../../../gobject/gclosure.c:873
-         marshal = <optimized out>
-         marshal_data = <optimized out>
-         in_marshal = 0
-         real_closure = <optimized out>
-         return_accu = <optimized out>
-         accu = {g_type = 0x14, data = {{v_int = 0, v_uint = 0, v_long = 0, 
v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 
0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 
0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
-         accumulator = 0x555555bc8470
-         emission = Python Exception <class 'TypeError'> can only concatenate 
str (not "NoneType") to str: 
+         marshal = <optimized out>
+         marshal_data = <optimized out>
+         in_marshal = 0
+         real_closure = <optimized out>
+         return_accu = <optimized out>
+         accu = {g_type = 0x14, data = {{v_int = 0, v_uint = 0, v_long = 0, 
v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 
0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 
0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
+         accumulator = 0x555555bc8470
+         emission = Python Exception <class 'TypeError'> can only concatenate 
str (not "NoneType") to str:
  {next = 0x0, instance = 0x555556396200, ihint = {signal_id = 94, detail = 0, 
run_type = (G_SIGNAL_RUN_LAST | G_SIGNAL_ACCUMULATOR_FIRST_RUN)}, state = 
EMISSION_RUN, chain_type = }
-         signal_id = 94
-         instance_type = <optimized out>
-         emission_return = {g_type = 0x14, data = {{v_int = 0, v_uint = 0, 
v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, 
v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, 
v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
-         rtype = 0x14
-         static_scope = 0
-         fastpath_handler = <optimized out>
-         closure = <optimized out>
-         run_type = <optimized out>
-         hlist = <optimized out>
-         l = <optimized out>
-         fastpath = 1
-         instance_and_params = <optimized out>
-         signal_return_type = <optimized out>
-         param_values = <optimized out>
-         node = <optimized out>
-         i = <optimized out>
-         n_params = <optimized out>
-         __func__ = "g_signal_emit_valist"
+         signal_id = 94
+         instance_type = <optimized out>
+         emission_return = {g_type = 0x14, data = {{v_int = 0, v_uint = 0, 
v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, 
v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, 
v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
+         rtype = 0x14
+         static_scope = 0
+         fastpath_handler = <optimized out>
+         closure = <optimized out>
+         run_type = <optimized out>
+         hlist = <optimized out>
+         l = <optimized out>
+         fastpath = 1
+         instance_and_params = <optimized out>
+         signal_return_type = <optimized out>
+         param_values = <optimized out>
+         node = <optimized out>
+         i = <optimized out>
+         n_params = <optimized out>
+         __func__ = "g_signal_emit_valist"
  #34 g_signal_emit_valist (instance=0x555556396200, signal_id=<optimized out>, 
detail=<optimized out>, var_args=var_args@entry=0x7fffffffd970) at 
../../../gobject/gsignal.c:3406
-         return_accu = <optimized out>
-         accu = {g_type = 0x14, data = {{v_int = 0, v_uint = 0, v_long = 0, 
v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 
0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 
0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
-         accumulator = 0x555555bc8470
-         emission = Python Exception <class 'TypeError'> can only concatenate 
str (not "NoneType") to str: 
+         return_accu = <optimized out>
+         accu = {g_type = 0x14, data = {{v_int = 0, v_uint = 0, v_long = 0, 
v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 
0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 
0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
+         accumulator = 0x555555bc8470
+         emission = Python Exception <class 'TypeError'> can only concatenate 
str (not "NoneType") to str:
  {next = 0x0, instance = 0x555556396200, ihint = {signal_id = 94, detail = 0, 
run_type = (G_SIGNAL_RUN_LAST | G_SIGNAL_ACCUMULATOR_FIRST_RUN)}, state = 
EMISSION_RUN, chain_type = }
-         signal_id = 94
-         instance_type = <optimized out>
-         emission_return = {g_type = 0x14, data = {{v_int = 0, v_uint = 0, 
v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, 
v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, 
v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
-         rtype = 0x14
-         static_scope = 0
-         fastpath_handler = <optimized out>
-         closure = <optimized out>
-         run_type = <optimized out>
-         hlist = <optimized out>
-         l = <optimized out>
-         fastpath = 1
-         instance_and_params = <optimized out>
-         signal_return_type = <optimized out>
-         param_values = <optimized out>
-         node = <optimized out>
-         i = <optimized out>
-         n_params = <optimized out>
-         __func__ = "g_signal_emit_valist"
+         signal_id = 94
+         instance_type = <optimized out>
+         emission_return = {g_type = 0x14, data = {{v_int = 0, v_uint = 0, 
v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, 
v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, 
v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
+         rtype = 0x14
+         static_scope = 0
+         fastpath_handler = <optimized out>
+         closure = <optimized out>
+         run_type = <optimized out>
+         hlist = <optimized out>
+         l = <optimized out>
+         fastpath = 1
+         instance_and_params = <optimized out>
+         signal_return_type = <optimized out>
+         param_values = <optimized out>
+         node = <optimized out>
+         i = <optimized out>
+         n_params = <optimized out>
+         __func__ = "g_signal_emit_valist"
  #35 0x00007ffff7d9c893 in g_signal_emit 
(instance=instance@entry=0x555556396200, signal_id=<optimized out>, 
detail=detail@entry=0) at ../../../gobject/gsignal.c:3553
-         var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 
0x7fffffffda50, reg_save_area = 0x7fffffffd990}}
+         var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 
0x7fffffffda50, reg_save_area = 0x7fffffffd990}}
  #36 0x00007ffff778fb44 in gtk_widget_event_internal.part.0.lto_priv.0 
(widget=0x555556396200, event=0x555556402a80) at 
../../../../gtk/gtkwidget.c:7808
-         signal_num = <optimized out>
-         return_val = <optimized out>
-         handled = 0
+         signal_num = <optimized out>
+         return_val = <optimized out>
+         handled = 0
  #37 0x00007ffff7631240 in propagate_event_up (topmost=<optimized out>, 
event=<optimized out>, widget=0x555556396200) at ../../../../gtk/gtkmain.c:2598
-         tmp = <optimized out>
-         handled_event = <optimized out>
-         handled_event = 0
+         tmp = <optimized out>
+         handled_event = <optimized out>
+         handled_event = 0
  #38 propagate_event (widget=widget@entry=0x555556396200, 
event=event@entry=0x555556402a80, captured=captured@entry=0, 
topmost=topmost@entry=0x0) at ../../../../gtk/gtkmain.c:2701
-         handled_event = 0
+         handled_event = 0
  #39 0x00007ffff7631373 in gtk_propagate_event 
(widget=widget@entry=0x555556396200, event=event@entry=0x555556402a80) at 
../../../../gtk/gtkmain.c:2735
-         __func__ = "gtk_propagate_event"
+         __func__ = "gtk_propagate_event"
  #40 0x00007ffff76324fb in gtk_main_do_event (event=0x555556402a80) at 
../../../../gtk/gtkmain.c:1921
-         grab_widget = 0x555556396200
-         window_group = 0x7fffe0041cb0
-         rewritten_event = <optimized out>
-         device = <optimized out>
-         tmp_list = <optimized out>
-         event_widget = <optimized out>
-         topmost_widget = <optimized out>
-         __func__ = "gtk_main_do_event"
+         grab_widget = 0x555556396200
+         window_group = 0x7fffe0041cb0
+         rewritten_event = <optimized out>
+         device = <optimized out>
+         tmp_list = <optimized out>
+         event_widget = <optimized out>
+         topmost_widget = <optimized out>
+         __func__ = "gtk_main_do_event"
  #41 gtk_main_do_event (event=<optimized out>) at 
../../../../gtk/gtkmain.c:1691
-         __func__ = "gtk_main_do_event"
+         __func__ = "gtk_main_do_event"
  #42 0x00007ffff7313753 in _gdk_event_emit (event=0x555556402a80) at 
../../../../gdk/gdkevents.c:73
  #43 _gdk_event_emit (event=0x555556402a80) at ../../../../gdk/gdkevents.c:67
  #44 0x00007ffff737a356 in gdk_event_source_dispatch (base=<optimized out>, 
callback=<optimized out>, data=<optimized out>) at 
wayland/../../../../../gdk/wayland/gdkeventsource.c:124
-         source = <optimized out>
-         display = <optimized out>
-         event = 0x555556402a80
+         source = <optimized out>
+         display = <optimized out>
+         event = 0x555556402a80
  #45 0x00007ffff7c8a8eb in g_main_dispatch (context=0x555555ac5000) at 
../../../glib/gmain.c:3337
-         dispatch = 0x7ffff737a330 <gdk_event_source_dispatch>
-         prev_source = 0x0
-         begin_time_nsec = 0
-         was_in_call = 0
-         user_data = 0x0
-         callback = 0x0
-         cb_funcs = <optimized out>
-         cb_data = <optimized out>
-         need_destroy = <optimized out>
-         source = 0x555555ad9990
-         current = 0x555555ac2fe0
-         i = 0
+         dispatch = 0x7ffff737a330 <gdk_event_source_dispatch>
+         prev_source = 0x0
+         begin_time_nsec = 0
+         was_in_call = 0
+         user_data = 0x0
+         callback = 0x0
+         cb_funcs = <optimized out>
+         cb_data = <optimized out>
+         need_destroy = <optimized out>
+         source = 0x555555ad9990
+         current = 0x555555ac2fe0
+         i = 0
  #46 g_main_context_dispatch (context=0x555555ac5000) at 
../../../glib/gmain.c:4055
  #47 0x00007ffff7cddd28 in g_main_context_iterate.constprop.0 
(context=context@entry=0x555555ac5000, block=block@entry=1, 
dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4131
-         max_priority = 2147483647
-         timeout = 399
-         some_ready = 1
-         nfds = <optimized out>
-         allocated_nfds = <optimized out>
-         fds = 0x55555633f2d0
+         max_priority = 2147483647
+         timeout = 399
+         some_ready = 1
+         nfds = <optimized out>
+         allocated_nfds = <optimized out>
+         fds = 0x55555633f2d0
  #48 0x00007ffff7c88023 in g_main_context_iteration 
(context=context@entry=0x555555ac5000, may_block=may_block@entry=1) at 
../../../glib/gmain.c:4196
-         retval = <optimized out>
+         retval = <optimized out>
  #49 0x00007ffff7ea227d in g_application_run (application=0x5555560576f0, 
argc=-8988, argc@entry=1, argv=argv@entry=0x7fffffffde58) at 
../../../gio/gapplication.c:2560
-         arguments = 0x555556115130
-         status = 0
-         context = 0x555555ac5000
-         acquired_context = <optimized out>
-         __func__ = "g_application_run"
+         arguments = 0x555556115130
+         status = 0
+         context = 0x555555ac5000
+         acquired_context = <optimized out>
+         __func__ = "g_application_run"
  #50 0x00005555555b6b48 in main (argc=<optimized out>, argv=<optimized out>) 
at ../shell/main.c:65
-         application = 0x5555560576f0
- 
- 
+         application = 0x5555560576f0
  
  Here are the versions of the relevant packages:
  
- gnome-control-center      1:40.0-1ubuntu1   amd64 
- libglib2.0-0            2.68.1-2          amd64 
+ gnome-control-center      1:40.0-1ubuntu1   amd64
+ libglib2.0-0            2.68.1-2          amd64
  libglib2.0-0            2.68.1-2          i386
- libgnome-desktop-3-19   3.38.5-1ubuntu3   amd64 
- libgtk-3-0              3.24.29-1ubuntu1  amd64 
- libgtk-3-0              3.24.29-1ubuntu1  i386 
+ libgnome-desktop-3-19   3.38.5-1ubuntu3   amd64
+ libgtk-3-0              3.24.29-1ubuntu1  amd64
+ libgtk-3-0              3.24.29-1ubuntu1  i386
  
  And this is not like that using the latest(not yet in main impish repo)
  pacakges and being in the Development Branch is causing the issue, as I
  already mentioned earlier. I just changed over to the Development branch
  for only 3 months now.
  
- 
  I am also thinking of raising an issue on this on gnome GitLab.
  And for the time being, how can I get around this and add some Input Sources 
by, I don't know, changing some user configs?
  
  Appreciate your help in advance

** Bug watch added: Debian Bug tracker #989045
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=989045

** Also affects: gnome-desktop3 (Debian) via
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=989045
   Importance: Unknown
       Status: Unknown

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https://bugs.launchpad.net/bugs/1933022

Title:
  gnome control-center crashed with sigsegv in g_str_hash() whenever I
  try to  add input sources

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