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/dumps/Test_diff_scroll_change_03.dump

diff --git a/src/testdir/dumps/Test_diff_scroll_change_03.dump b/src/testdir/dumps/Test_diff_scroll_change_03.dump
new file mode 100644
index 0000000..6d0c860
--- /dev/null
+++ b/src/testdir/dumps/Test_diff_scroll_change_03.dump
@@ -0,0 +1,20 @@
+| +0#0000e05#a8a8a8255@1|-+0#4040ff13#afffff255@34||+1#0000000#ffffff0| +0#0000e05#a8a8a8255@1|6+0#0000000#5fd7ff255| @33
+| +0#0000e05#a8a8a8255@1|-+0#4040ff13#afffff255@34||+1#0000000#ffffff0| +0#0000e05#a8a8a8255@1|7+0#0000000#5fd7ff255| @33
+| +0#0000e05#a8a8a8255@1|-+0#4040ff13#afffff255@34||+1#0000000#ffffff0| +0#0000e05#a8a8a8255@1|8+0#0000000#5fd7ff255| @33
+| +0#0000e05#a8a8a8255@1|9+0#0000000#ffffff0| @33||+1&&| +0#0000e05#a8a8a8255@1|9+0#0000000#ffffff0| @33
+| +0#0000e05#a8a8a8255@1|1+0#0000000#ffffff0|0| @32||+1&&| +0#0000e05#a8a8a8255@1|1+0#0000000#ffffff0|0| @32
+| +0#0000e05#a8a8a8255@1|1+0#0000000#ffffff0@1| @32||+1&&| +0#0000e05#a8a8a8255@1|1+0#0000000#ffffff0@1| @32
+| +0#0000e05#a8a8a8255@1|1+0#0000000#ffffff0|2| @32||+1&&| +0#0000e05#a8a8a8255@1|1+0#0000000#ffffff0|2| @32
+| +0#0000e05#a8a8a8255@1|1+0#0000000#ffffff0|3| @32||+1&&| +0#0000e05#a8a8a8255@1|1+0#0000000#ffffff0|3| @32
+| +0#0000e05#a8a8a8255@1|1+0#0000000#ffffff0|4| @32||+1&&| +0#0000e05#a8a8a8255@1|1+0#0000000#ffffff0|4| @32
+| +0#0000e05#a8a8a8255@1|1+0#0000000#ffd7ff255|5|x+2&#ff404010| +0&#ffd7ff255@31||+1&#ffffff0| +0#0000e05#a8a8a8255@1|1+0#0000000#ffd7ff255|5>y+2&#ff404010| +0&#ffd7ff255@31
+|~+0#4040ff13#ffffff0| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|[+1#0000000&|N|o| |N|a|m|e|]| |[|+|]| @5|7|,|3| @11|A|l@1| |[+3&&|N|o| |N|a|m|e|]| |[|+|]| @5|1|5|,|3| @10|B|o|t
+| +0&&@74

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')