patch 9.1.1808: Option insecure flags not copied when splitting window

Commit: 
https://github.com/vim/vim/commit/b3740f4b00a78701637a49445adeb20b13e6edf6
Author: zeertzjq <[email protected]>
Date:   Mon Sep 29 19:30:07 2025 +0000

    patch 9.1.1808: Option insecure flags not copied when splitting window
    
    Problem:  Option insecure flags not copied when splitting window.
    Solution: Move window-local insecure flags to winopt_T and copy them
              properly (zeertzjq).
    
    closes: #18434
    
    Signed-off-by: zeertzjq <[email protected]>
    Signed-off-by: Christian Brabandt <[email protected]>

diff --git a/src/beval.c b/src/beval.c
index 65dfbc2aa..0b397b644 100644
--- a/src/beval.c
+++ b/src/beval.c
@@ -235,7 +235,6 @@ bexpr_eval(
 {
     win_T      *cw;
     long       winnr = 0;
-    buf_T      *save_curbuf;
     int                use_sandbox;
     static char_u  *result = NULL;
     size_t     len;
@@ -254,15 +253,8 @@ bexpr_eval(
     set_vim_var_string(VV_BEVAL_TEXT, text, -1);
     vim_free(text);
 
-    /*
-     * Temporarily change the curbuf, so that we can determine whether
-     * the buffer-local balloonexpr option was set insecurely.
-     */
-    save_curbuf = curbuf;
-    curbuf = wp->w_buffer;
-    use_sandbox = was_set_insecurely((char_u *)"balloonexpr",
-                                   *curbuf->b_p_bexpr == NUL ? 0 : OPT_LOCAL);
-    curbuf = save_curbuf;
+    use_sandbox = was_set_insecurely(wp, (char_u *)"balloonexpr",
+                           *wp->w_buffer->b_p_bexpr == NUL ? 0 : OPT_LOCAL);
     if (use_sandbox)
        ++sandbox;
     ++textlock;
diff --git a/src/buffer.c b/src/buffer.c
index 29908c4aa..0c21d196f 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -4423,7 +4423,7 @@ build_stl_str_hl(
 
 #ifdef FEAT_EVAL
     // if "fmt" was set insecurely it needs to be evaluated in the sandbox
-    use_sandbox = was_set_insecurely(opt_name, opt_scope);
+    use_sandbox = was_set_insecurely(wp, opt_name, opt_scope);
 
     // When the format starts with "%!" then evaluate it as an expression and
     // use the result as the actual format string.
diff --git a/src/eval.c b/src/eval.c
index 4a55adac7..1b522d37c 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -1020,7 +1020,7 @@ eval_foldexpr(win_T *wp, int *cp)
     varnumber_T        retval;
     char_u     *s;
     sctx_T     saved_sctx = current_sctx;
-    int                use_sandbox = was_set_insecurely((char_u *)"foldexpr",
+    int                use_sandbox = was_set_insecurely(wp, (char_u 
*)"foldexpr",
                                                                    OPT_LOCAL);
 
     arg = skipwhite(wp->w_p_fde);
diff --git a/src/findfile.c b/src/findfile.c
index c0418d51c..cd2f85b67 100644
--- a/src/findfile.c
+++ b/src/findfile.c
@@ -2186,7 +2186,7 @@ eval_includeexpr(char_u *ptr, int len)
     current_sctx = curbuf->b_p_script_ctx[BV_INEX];
 
     res = eval_to_string_safe(curbuf->b_p_inex,
-           was_set_insecurely((char_u *)"includeexpr", OPT_LOCAL),
+           was_set_insecurely(curwin, (char_u *)"includeexpr", OPT_LOCAL),
                                                                   TRUE, TRUE);
 
     set_vim_var_string(VV_FNAME, NULL, 0);
diff --git a/src/fold.c b/src/fold.c
index 4824a807c..e5b49f674 100644
--- a/src/fold.c
+++ b/src/fold.c
@@ -1965,8 +1965,8 @@ get_foldtext(
 
            ++emsg_off; // handle exceptions, but don't display errors
            text = eval_to_string_safe(wp->w_p_fdt,
-                          was_set_insecurely((char_u *)"foldtext", OPT_LOCAL),
-                          TRUE, TRUE);
+                      was_set_insecurely(wp, (char_u *)"foldtext", OPT_LOCAL),
+                      TRUE, TRUE);
            --emsg_off;
 
            if (text == NULL || did_emsg)
diff --git a/src/indent.c b/src/indent.c
index 4e2614943..320d4a232 100644
--- a/src/indent.c
+++ b/src/indent.c
@@ -1958,8 +1958,8 @@ get_expr_indent(void)
     colnr_T    save_curswant;
     int                save_set_curswant;
     int                save_State;
-    int                use_sandbox = was_set_insecurely((char_u *)"indentexpr",
-                                                                  OPT_LOCAL);
+    int                use_sandbox = was_set_insecurely(curwin,
+                                           (char_u *)"indentexpr", OPT_LOCAL);
     sctx_T     save_sctx = current_sctx;
 
     // Save and restore cursor position and curswant, in case it was changed
diff --git a/src/option.c b/src/option.c
index 8a495e087..bfdaa7ec5 100644
--- a/src/option.c
+++ b/src/option.c
@@ -46,9 +46,9 @@ static char_u *option_expand(int opt_idx, char_u *val);
 static void didset_options(void);
 static void didset_options2(void);
 #if defined(FEAT_EVAL) || defined(PROTO)
-static long_u *insecure_flag(int opt_idx, int opt_flags);
+static long_u *insecure_flag(win_T *wp, int opt_idx, int opt_flags);
 #else
-# define insecure_flag(opt_idx, opt_flags) (&options[opt_idx].flags)
+# define insecure_flag(wp, opt_idx, opt_flags) (&options[opt_idx].flags)
 #endif
 static char *set_bool_option(int opt_idx, char_u *varp, int value, int 
opt_flags);
 static char *set_num_option(int opt_idx, char_u *varp, long value, char 
*errbuf, size_t errbuflen, int opt_flags);
@@ -829,11 +829,11 @@ set_option_default(
        }
 
        // The default value is not insecure.
-       flagsp = insecure_flag(opt_idx, opt_flags);
+       flagsp = insecure_flag(curwin, opt_idx, opt_flags);
        *flagsp = *flagsp & ~P_INSECURE;
        if (both)
        {
-           flagsp = insecure_flag(opt_idx, OPT_LOCAL);
+           flagsp = insecure_flag(curwin, opt_idx, OPT_LOCAL);
            *flagsp = *flagsp & ~P_INSECURE;
        }
     }
@@ -2140,7 +2140,7 @@ do_set_option_string(
 #endif
 
     {
-       long_u  *p = insecure_flag(opt_idx, opt_flags);
+       long_u  *p = insecure_flag(curwin, opt_idx, opt_flags);
        int     secure_saved = secure;
 
        // When an option is set in the sandbox, from a modeline or in secure
@@ -2795,9 +2795,9 @@ did_set_option(
     // When an option is set in the sandbox, from a modeline or in secure mode
     // set the P_INSECURE flag.  Otherwise, if a new value is stored reset the
     // flag.
-    flagsp = insecure_flag(opt_idx, opt_flags);
+    flagsp = insecure_flag(curwin, opt_idx, opt_flags);
     if (both)
-       flagsp_local = insecure_flag(opt_idx, OPT_LOCAL);
+       flagsp_local = insecure_flag(curwin, opt_idx, OPT_LOCAL);
     if (!value_checked && (secure
 #ifdef HAVE_SANDBOX
            || sandbox != 0
@@ -3072,14 +3072,14 @@ set_term_option_alloced(char_u **p)
  * Return -1 for an unknown option.
  */
     int
-was_set_insecurely(char_u *opt, int opt_flags)
+was_set_insecurely(win_T *wp, char_u *opt, int opt_flags)
 {
     int            idx = findoption(opt);
     long_u  *flagp;
 
     if (idx >= 0)
     {
-       flagp = insecure_flag(idx, opt_flags);
+       flagp = insecure_flag(wp, idx, opt_flags);
        return (*flagp & P_INSECURE) != 0;
     }
     internal_error("was_set_insecurely()");
@@ -3093,28 +3093,38 @@ was_set_insecurely(char_u *opt, int opt_flags)
  * the option is used.
  */
     static long_u *
-insecure_flag(int opt_idx, int opt_flags)
+insecure_flag(win_T *wp, int opt_idx, int opt_flags)
 {
     if (opt_flags & OPT_LOCAL)
        switch ((int)options[opt_idx].indir)
        {
-           case PV_WRAP:       return &curwin->w_p_wrap_flags;
+           case PV_WRAP:       return &wp->w_p_wrap_flags;
 #ifdef FEAT_STL_OPT
-           case PV_STL:        return &curwin->w_p_stl_flags;
+           case PV_STL:        return &wp->w_p_stl_flags;
 #endif
 #ifdef FEAT_EVAL
 # ifdef FEAT_FOLDING
-           case PV_FDE:        return &curwin->w_p_fde_flags;
-           case PV_FDT:        return &curwin->w_p_fdt_flags;
+           case PV_FDE:        return &wp->w_p_fde_flags;
+           case PV_FDT:        return &wp->w_p_fdt_flags;
 # endif
 # ifdef FEAT_BEVAL
-           case PV_BEXPR:      return &curbuf->b_p_bexpr_flags;
+           case PV_BEXPR:      return &wp->w_buffer->b_p_bexpr_flags;
 # endif
-           case PV_INDE:       return &curbuf->b_p_inde_flags;
-           case PV_FEX:        return &curbuf->b_p_fex_flags;
+           case PV_INDE:       return &wp->w_buffer->b_p_inde_flags;
+           case PV_FEX:        return &wp->w_buffer->b_p_fex_flags;
 # ifdef FEAT_FIND_ID
-           case PV_INEX:       return &curbuf->b_p_inex_flags;
+           case PV_INEX:       return &wp->w_buffer->b_p_inex_flags;
 # endif
+#endif
+       }
+    else
+       // For global value of window-local options, use flags in w_allbuf_opt.
+       switch ((int)options[opt_idx].indir)
+       {
+           case PV_WRAP:       return &wp->w_allbuf_opt.wo_wrap_flags;
+#if defined(FEAT_EVAL) && defined(FEAT_FOLDING)
+           case PV_FDE:        return &wp->w_allbuf_opt.wo_fde_flags;
+           case PV_FDT:        return &wp->w_allbuf_opt.wo_fdt_flags;
 #endif
        }
 
@@ -7141,6 +7151,15 @@ copy_winopt(winopt_T *from, winopt_T *to)
     to->wo_lhi = from->wo_lhi;
 #endif
 
+    to->wo_wrap_flags = from->wo_wrap_flags;
+#ifdef FEAT_STL_OPT
+    to->wo_stl_flags = from->wo_stl_flags;
+#endif
+#ifdef FEAT_EVAL
+    to->wo_fde_flags = from->wo_fde_flags;
+    to->wo_fdt_flags = from->wo_fdt_flags;
+#endif
+
 #ifdef FEAT_EVAL
     // Copy the script context so that we know where the value was last set.
     mch_memmove(to->wo_script_ctx, from->wo_script_ctx,
diff --git a/src/proto/option.pro b/src/proto/option.pro
index de551d83e..4fa8935c0 100644
--- a/src/proto/option.pro
+++ b/src/proto/option.pro
@@ -18,7 +18,7 @@ void set_options_bin(int oldval, int newval, int opt_flags);
 void check_options(void);
 int get_term_opt_idx(char_u **p);
 int set_term_option_alloced(char_u **p);
-int was_set_insecurely(char_u *opt, int opt_flags);
+int was_set_insecurely(win_T *wp, char_u *opt, int opt_flags);
 void redraw_titles(void);
 int valid_name(char_u *val, char *allowed);
 void set_option_sctx_idx(int opt_idx, int opt_flags, sctx_T script_ctx);
diff --git a/src/structs.h b/src/structs.h
index fd752109f..f39f5d3a6 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -348,6 +348,20 @@ typedef struct
 # define w_p_twk w_onebuf_opt.wo_twk   // 'termwinkey'
     char_u     *wo_tws;
 # define w_p_tws w_onebuf_opt.wo_tws   // 'termwinsize'
+#endif
+
+    // A few options have local flags for P_INSECURE.
+    long_u     wo_wrap_flags;          // flags for 'wrap'
+#define w_p_wrap_flags w_onebuf_opt.wo_wrap_flags
+#ifdef FEAT_STL_OPT
+    long_u     wo_stl_flags;           // flags for 'statusline'
+# define w_p_stl_flags w_onebuf_opt.wo_stl_flags
+#endif
+#ifdef FEAT_EVAL
+    long_u     wo_fde_flags;           // flags for 'foldexpr'
+# define w_p_fde_flags w_onebuf_opt.wo_fde_flags
+    long_u     wo_fdt_flags;           // flags for 'foldtext'
+# define w_p_fdt_flags w_onebuf_opt.wo_fdt_flags
 #endif
 
 #ifdef FEAT_EVAL
@@ -4213,15 +4227,6 @@ struct window_S
     // transform a pointer to a "onebuf" option into a "allbuf" option
 #define GLOBAL_WO(p)   ((char *)(p) + sizeof(winopt_T))
 
-    // A few options have local flags for P_INSECURE.
-    long_u     w_p_wrap_flags;     // flags for 'wrap'
-#ifdef FEAT_STL_OPT
-    long_u     w_p_stl_flags;      // flags for 'statusline'
-#endif
-#ifdef FEAT_EVAL
-    long_u     w_p_fde_flags;      // flags for 'foldexpr'
-    long_u     w_p_fdt_flags;      // flags for 'foldtext'
-#endif
 #if defined(FEAT_SIGNS) || defined(FEAT_FOLDING) || defined(FEAT_DIFF)
     int                *w_p_cc_cols;       // array of columns to highlight or 
NULL
     char_u     w_p_culopt_flags;   // flags for cursorline highlighting
diff --git a/src/tabpanel.c b/src/tabpanel.c
index f393fafca..35c0ccab7 100644
--- a/src/tabpanel.c
+++ b/src/tabpanel.c
@@ -465,7 +465,7 @@ starts_with_percent_and_bang(tabpanel_T *pargs)
 
 #ifdef FEAT_EVAL
     // if "fmt" was set insecurely it needs to be evaluated in the sandbox
-    int        use_sandbox = was_set_insecurely(opt_name, opt_scope);
+    int        use_sandbox = was_set_insecurely(curwin, opt_name, opt_scope);
 
     // When the format starts with "%!" then evaluate it as an expression and
     // use the result as the actual format string.
diff --git a/src/testdir/test_fold.vim b/src/testdir/test_fold.vim
index 3a00d9c2c..5ba2e81f3 100644
--- a/src/testdir/test_fold.vim
+++ b/src/testdir/test_fold.vim
@@ -1688,6 +1688,11 @@ func Test_foldtext_in_modeline()
     call assert_equal('folded text', foldtextresult(1))
     call assert_equal(['before'], readfile('Xmodelinefoldtext_write'))
 
+    split
+    call assert_equal('folded text', foldtextresult(1))
+    call assert_equal(['before'], readfile('Xmodelinefoldtext_write'))
+    close
+
     setglobal foldtext=ModelineFoldText()
     call assert_equal('folded text', foldtextresult(1))
     call assert_equal(['before'], readfile('Xmodelinefoldtext_write'))
@@ -1715,6 +1720,28 @@ func Test_foldtext_in_modeline()
   call Check_foldtext_in_modeline('setlocal')
   call Check_foldtext_in_modeline('set')
 
+  new Xa
+  sandbox setglobal foldenable foldtext=ModelineFoldText()
+  setlocal bufhidden=wipe
+  call writefile(['before'], 'Xmodelinefoldtext_write', 'D')
+  edit! Xb
+  call setline(1, ['func T()', '  let i = 1', 'endfunc']) | %fold
+  call assert_equal('folded text', foldtextresult(1))
+  call assert_equal(['before'], readfile('Xmodelinefoldtext_write'))
+  setglobal foldtext=ModelineFoldText()
+  call assert_equal('folded text', foldtextresult(1))
+  call assert_equal(['before'], readfile('Xmodelinefoldtext_write'))
+  setlocal foldtext=ModelineFoldText()
+  call assert_equal('folded text', foldtextresult(1))
+  call assert_equal(['after'], readfile('Xmodelinefoldtext_write'))
+  setlocal bufhidden=wipe
+  call writefile(['before'], 'Xmodelinefoldtext_write', 'D')
+  edit! Xc
+  call setline(1, ['func T()', '  let i = 1', 'endfunc']) | %fold
+  call assert_equal('folded text', foldtextresult(1))
+  call assert_equal(['after'], readfile('Xmodelinefoldtext_write'))
+  bwipe!
+
   set modeline& modelineexpr&
   delfunc ModelineFoldText
   delfunc Check_foldtext_in_modeline
@@ -1744,6 +1771,11 @@ func Test_foldexpr_in_modeline()
     call assert_equal(2, foldlevel(3))
     call assert_equal(['before'], readfile('Xmodelinefoldexpr_write'))
 
+    split
+    call assert_equal(2, foldlevel(3))
+    call assert_equal(['before'], readfile('Xmodelinefoldexpr_write'))
+    close
+
     setglobal foldexpr=ModelineFoldExpr()
     call assert_equal(2, foldlevel(3))
     call assert_equal(['before'], readfile('Xmodelinefoldexpr_write'))
@@ -1771,6 +1803,28 @@ func Test_foldexpr_in_modeline()
   call Check_foldexpr_in_modeline('setlocal')
   call Check_foldexpr_in_modeline('set')
 
+  new Xa
+  sandbox setglobal foldenable foldmethod=expr foldexpr=ModelineFoldExpr()
+  setlocal bufhidden=wipe
+  call writefile(['before'], 'Xmodelinefoldexpr_write', 'D')
+  edit! Xb
+  call setline(1, lines[0:5])
+  call assert_equal(2, foldlevel(3))
+  call assert_equal(['before'], readfile('Xmodelinefoldexpr_write'))
+  setglobal foldexpr=ModelineFoldExpr()
+  call assert_equal(2, foldlevel(3))
+  call assert_equal(['before'], readfile('Xmodelinefoldexpr_write'))
+  setlocal foldexpr=ModelineFoldExpr()
+  call assert_equal(2, foldlevel(3))
+  call assert_equal(['after'], readfile('Xmodelinefoldexpr_write'))
+  setlocal bufhidden=wipe
+  call writefile(['before'], 'Xmodelinefoldexpr_write', 'D')
+  edit! Xc
+  call setline(1, lines[0:5])
+  call assert_equal(2, foldlevel(3))
+  call assert_equal(['after'], readfile('Xmodelinefoldexpr_write'))
+  bwipe!
+
   set modeline& modelineexpr&
   delfunc ModelineFoldExpr
   delfunc Check_foldexpr_in_modeline
diff --git a/src/testdir/test_modeline.vim b/src/testdir/test_modeline.vim
index cb144c580..4cc091b9c 100644
--- a/src/testdir/test_modeline.vim
+++ b/src/testdir/test_modeline.vim
@@ -369,19 +369,35 @@ func Test_modeline_nowrap_lcs_extends()
         \ 'ccc                    evil',
         \ 'ddd                    vim: nowrap',
         \ ], 'Xmodeline_nowrap', 'D')
-  call NewWindow(10, 20)
+  set noequalalways
+  11new | 20vsplit
 
   func Check_modeline_nowrap(expect_insecure, expect_secure, set_cmd)
     edit Xmodeline_nowrap
     call assert_equal(a:expect_insecure, ScreenLines([1, 5], 20))
+
+    5split
+    call assert_equal(a:expect_insecure, ScreenLines([1, 5], 20))
+    call assert_equal(a:expect_insecure, ScreenLines([7, 11], 20))
+
+    exe a:set_cmd 'nowrap'
+    call assert_equal(a:expect_secure, ScreenLines([1, 5], 20))
+    call assert_equal(a:expect_insecure, ScreenLines([7, 11], 20))
+
+    close
+    call assert_equal(a:expect_insecure, ScreenLines([1, 5], 20))
+
     setglobal nowrap
     call assert_equal(a:expect_insecure, ScreenLines([1, 5], 20))
     setglobal wrap
     call assert_equal(a:expect_insecure, ScreenLines([1, 5], 20))
+
     exe a:set_cmd 'nowrap'
     call assert_equal(a:expect_secure, ScreenLines([1, 5], 20))
+
     exe 'sandbox' a:set_cmd 'nowrap'
     call assert_equal(a:expect_insecure, ScreenLines([1, 5], 20))
+
     exe a:set_cmd 'nowrap'
     call assert_equal(a:expect_secure, ScreenLines([1, 5], 20))
   endfunc
@@ -450,8 +466,28 @@ func Test_modeline_nowrap_lcs_extends()
   call Check_modeline_nowrap(expect_insecure, expect_secure, 'setlocal')
   call Check_modeline_nowrap(expect_insecure, expect_secure, 'set')
 
-  call CloseWindow()
+  sandbox setglobal nowrap
+  setglobal list listchars=eol:$
+  setlocal bufhidden=wipe
+  enew!
+  call setline(1, ['aaa                    bbb'])
+  call assert_equal(['aaa                >'], ScreenLines(1, 20))
+  setglobal nowrap
+  call assert_equal(['aaa                >'], ScreenLines(1, 20))
+  setlocal nowrap
+  call assert_equal(['aaa                 '], ScreenLines(1, 20))
+  normal! 20zl
+  call assert_equal(['   bbb$             '], ScreenLines(1, 20))
+  setlocal bufhidden=wipe
+  enew!
+  call setline(1, ['ccc                    ddd'])
+  call assert_equal(['ccc                 '], ScreenLines(1, 20))
+  normal! 20zl
+  call assert_equal(['   ddd$             '], ScreenLines(1, 20))
+
+  bwipe!
   delfunc Check_modeline_nowrap
+  set equalalways&
 endfunc
 
 " vim: shiftwidth=2 sts=2 expandtab
diff --git a/src/testdir/test_statusline.vim b/src/testdir/test_statusline.vim
index e1f635940..9aa6aef66 100644
--- a/src/testdir/test_statusline.vim
+++ b/src/testdir/test_statusline.vim
@@ -645,17 +645,31 @@ func Test_statusline_in_sandbox()
   endfunc
 
   func Check_statusline_in_sandbox(set_cmd0, set_cmd1)
-    new | only
-    call writefile(['before'], 'Xsandboxstatusline_write', 'D')
+    only
+    11new | 20vsplit
+    call setline(1, 'foo')
+    windo setlocal statusline=SomethingElse
+    wincmd t
     setlocal statusline=
+    call writefile(['before'], 'Xsandboxstatusline_write', 'D')
+
     exe 'sandbox' a:set_cmd0 'statusline=%!SandboxStatusLine()'
     call assert_equal('', &l:statusline)
     sandbox setlocal statusline=%!SandboxStatusLine()
     call assert_fails('redrawstatus', 'E48:')
     call assert_equal(['before'], readfile('Xsandboxstatusline_write'))
+    wincmd b
+    call assert_fails('redrawstatus!', 'E48:')
+    call assert_equal(['before'], readfile('Xsandboxstatusline_write'))
+    wincmd t
+
+    5split
+    call assert_fails('redrawstatus!', 'E48:')
+    call assert_equal(['before'], readfile('Xsandboxstatusline_write'))
+    close
 
     setlocal statusline=%!SandboxStatusLine() | redrawstatus
-    call assert_equal('status line', Screenline(&lines - 1))
+    call assert_equal('status line', Screenline(12))
     call assert_equal(['after'], readfile('Xsandboxstatusline_write'))
 
     call writefile(['before'], 'Xsandboxstatusline_write')
@@ -663,19 +677,25 @@ func Test_statusline_in_sandbox()
     call assert_fails('redrawstatus', 'E48:')
     call assert_equal(['before'], readfile('Xsandboxstatusline_write'))
 
-    exe a:set_cmd1 'statusline=%!SandboxStatusLine()' | redrawstatus
+    5split
+    call assert_fails('redrawstatus!', 'E48:')
+    call assert_equal(['before'], readfile('Xsandboxstatusline_write'))
+
+    exe a:set_cmd1 'statusline=%!SandboxStatusLine()' | redrawstatus!
     call assert_equal('', &l:statusline)
-    call assert_equal('status line', Screenline(&lines - 1))
+    call assert_equal('status line', Screenline(6))
+    call assert_equal('status line', Screenline(12))
     call assert_equal(['after'], readfile('Xsandboxstatusline_write'))
-    bw!
+    bwipe!
   endfunc
 
+  set noequalalways
   call Check_statusline_in_sandbox('setglobal', 'setglobal')
   call Check_statusline_in_sandbox('setglobal', 'set')
   call Check_statusline_in_sandbox('set', 'setglobal')
   call Check_statusline_in_sandbox('set', 'set')
 
-  set statusline&
+  set equalalways& statusline&
   delfunc SandboxStatusLine
   delfunc Check_statusline_in_sandbox
 endfunc
diff --git a/src/textformat.c b/src/textformat.c
index 1af4b2f4d..f160d1d87 100644
--- a/src/textformat.c
+++ b/src/textformat.c
@@ -938,8 +938,8 @@ fex_format(
     long       count,
     int                c)      // character to be inserted
 {
-    int                use_sandbox = was_set_insecurely((char_u *)"formatexpr",
-                                                                  OPT_LOCAL);
+    int                use_sandbox = was_set_insecurely(curwin,
+                                           (char_u *)"formatexpr", OPT_LOCAL);
     int                r;
     char_u     *fex;
     sctx_T     save_sctx = current_sctx;
diff --git a/src/version.c b/src/version.c
index ba653958a..7abd1e7a2 100644
--- a/src/version.c
+++ b/src/version.c
@@ -729,6 +729,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1808,
 /**/
     1807,
 /**/

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