# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1664991002 -7200
# Node ID fe0a18141c3c817b26ff116d79228d2134f5dae0
# Parent  42e4fc20b3ccb1e8252a4825605b402ac0fd7522
patch 9.0.0667: ml_get error when 'splitkeep' is "screen"

Commit: https://github.com/vim/vim/commit/346823d3e5668b99d2c2fd920e7f215e21ad3ea7
Author: Luuk van Baal <luukvbaal@gmail.com>
Date:   Wed Oct 5 18:26:42 2022 +0100

    patch 9.0.0667: ml_get error when 'splitkeep' is "screen"

    Problem:    ml_get error when 'splitkeep' is "screen". (Marius Gedminas)
    Solution:   Check the botline is not too large. (Luuk van Baal,
                closes #11293, closes #11292)

diff --git a/src/testdir/test_window_cmd.vim b/src/testdir/test_window_cmd.vim
--- a/src/testdir/test_window_cmd.vim
+++ b/src/testdir/test_window_cmd.vim
@@ -1807,6 +1807,13 @@ function Test_splitkeep_misc()
   let top = line('w0')
   help | quit
   call assert_equal(top, line('w0'))
+  " No error when resizing window in autocmd and buffer length changed
+  autocmd FileType qf exe "resize" line('$')
+  cexpr getline(1, '$')
+  copen
+  wincmd p
+  norm dd
+  cexpr getline(1, '$')
 
   %bwipeout!
   set splitbelow&
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    667,
+/**/
     666,
 /**/
     665,
diff --git a/src/window.c b/src/window.c
--- a/src/window.c
+++ b/src/window.c
@@ -6356,7 +6356,8 @@ win_fix_scroll(int resize)
 	if (wp->w_height != wp->w_prev_height)
 	{
 	    // If window has moved update botline to keep the same screenlines.
-	    if (*p_spk == 's' && wp->w_winrow != wp->w_prev_winrow)
+	    if (*p_spk == 's' && wp->w_winrow != wp->w_prev_winrow
+		      && wp->w_botline - 1 <= wp->w_buffer->b_ml.ml_line_count)
 	    {
 		lnum = wp->w_cursor.lnum;
 		diff = (wp->w_winrow - wp->w_prev_winrow)