patch 9.2.0413: Scrolling wrong with 'splitkeep' when changing 'cmdheight'

Commit: 
https://github.com/vim/vim/commit/bd0f3e6da5df70ab2250264d0a7efc7db83c3dc8
Author: Luuk van Baal <[email protected]>
Date:   Tue Apr 28 21:09:45 2026 +0000

    patch 9.2.0413: Scrolling wrong with 'splitkeep' when changing 'cmdheight'
    
    Problem:  Cursor is not adjusted when 'cmdheight' is changed to cover
              the cursor with 'splitkeep' ~= "cursor".
    Solution: Handle window resize for 'splitkeep' after changing 'cmdheight'.
              Ensure previous window height is set when changing 'splitkeep'
              (Luuk van Baal).
    
    closes: #20043
    
    Signed-off-by: Luuk van Baal <[email protected]>
    Signed-off-by: Christian Brabandt <[email protected]>

diff --git a/src/optionstr.c b/src/optionstr.c
index 72f5dd3ce..0390d2dac 100644
--- a/src/optionstr.c
+++ b/src/optionstr.c
@@ -4384,6 +4384,10 @@ expand_set_spellsuggest(optexpand_T *args, int 
*numMatches, char_u ***matches)
     char *
 did_set_splitkeep(optset_T *args UNUSED)
 {
+    win_T      *wp;
+    tabpage_T  *tp;
+    FOR_ALL_TAB_WINDOWS(tp, wp)
+       wp->w_prev_height = wp->w_height;
     return did_set_opt_strings(p_spk, p_spk_values, FALSE);
 }
 
diff --git a/src/testdir/test_window_cmd.vim b/src/testdir/test_window_cmd.vim
index 98e9ba83d..b1305c77e 100644
--- a/src/testdir/test_window_cmd.vim
+++ b/src/testdir/test_window_cmd.vim
@@ -1992,6 +1992,16 @@ func Test_splitkeep_screen_cursor_pos()
   set splitkeep&
 endfunc
 
+func Test_splitkeep_cmdheight()
+  set splitkeep=screen
+  call setline(1, range(&lines))
+  norm! G
+  set cmdheight=2
+  call assert_equal(&lines - 1, line('.'))
+  %bwipeout!
+  set splitkeep& cmdheight&
+endfunc
+
 func Test_splitkeep_cursor()
   CheckScreendump
   let lines =<< trim END
diff --git a/src/version.c b/src/version.c
index 778a227b7..824a80de9 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 */
+/**/
+    413,
 /**/
     412,
 /**/
diff --git a/src/window.c b/src/window.c
index c3acd7af3..8813ffa80 100644
--- a/src/window.c
+++ b/src/window.c
@@ -7591,6 +7591,7 @@ command_height(void)
     }
     if (p_ch < old_p_ch && command_frame_height && frp != NULL)
        frame_add_height(frp, (int)(old_p_ch - p_ch));
+    win_fix_scroll(true);
 
     // Recompute window positions.
     win_comp_pos();

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