commit 841c225b9ef8c5bdf5e02968a0bd62521fff6ca8
author Bram Moolenaar <Bram@vim.org> Fri Oct 22 20:56:55 2021 +0100
committer Bram Moolenaar <Bram@vim.org> Fri Oct 22 20:56:55 2021 +0100
tree 05e85434a0e81ecede802cf640547dfe2f5e7486
parent 25def2c8b8bd7b0c3d5f020207c717a880b05d50

patch 8.2.3556: filler lines are incorrect for other window in diff mode

Problem:    Filler lines are incorrect for other window in diff mode after
            making a change.
Solution:   Copy filler lines from the current window. (closes #8809)

src/testdir/test_diffmode.vim

diff --git a/src/testdir/test_diffmode.vim b/src/testdir/test_diffmode.vim
index 08ec71b..e8bd087 100644
--- a/src/testdir/test_diffmode.vim
+++ b/src/testdir/test_diffmode.vim
@@ -1013,6 +1013,9 @@
   call term_sendkeys(buf, "ax\<Esc>")
   call VerifyScreenDump(buf, 'Test_diff_scroll_change_02', {})
 
+  call term_sendkeys(buf, "\<C-W>lay\<Esc>")
+  call VerifyScreenDump(buf, 'Test_diff_scroll_change_03', {})
+
   " clean up
   call StopVimInTerminal(buf)
   call delete('Xtest_scroll_change')