patch 8.2.5163: crash when deleting buffers in diff mode
Problem: Crash when deleting buffers in diff mode.
Solution: Recompute diffs later. Skip window without a valid buffer.
diff --git a/src/testdir/test_diffmode.vim b/src/testdir/test_diffmode.vim
index 03c6c79..afa8f89 100644
--- a/src/testdir/test_diffmode.vim
+++ b/src/testdir/test_diffmode.vim
@@ -1603,5 +1603,17 @@
call delete('Xright')
endfunc
+" This was trying to update diffs for a buffer being closed
+func Test_diff_only()
+ silent! lfile
+ set diff
+ lopen
+ norm o
+ silent! norm o
+
+ set nodiff
+ %bwipe!
+endfunc
+
" vim: shiftwidth=2 sts=2 expandtab