patch 8.2.4707: redrawing could be a bit more efficient
Problem: Redrawing could be a bit more efficient.
Solution: Optimize redrawing. (closes #10105)
diff --git a/src/testdir/dumps/Test_cursorcolumn_insert_on_tab_3.dump b/src/testdir/dumps/Test_cursorcolumn_insert_on_tab_3.dump
new file mode 100644
index 0000000..9d0cbed
--- /dev/null
+++ b/src/testdir/dumps/Test_cursorcolumn_insert_on_tab_3.dump
@@ -0,0 +1,8 @@
+|1+0&#ffffff0|2|3|4|5|6|7|8+0&#e0e0e08|9+0&#ffffff0| @65
+|a| @5> |b| @65
+|~+0#4040ff13&| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|-+2#0000000&@1| |(|i|n|s|e|r|t|)| |-@1| +0&&@42|2|,|2|-|8| @8|A|l@1|
diff --git a/src/testdir/test_highlight.vim b/src/testdir/test_highlight.vim
index 51a2524..3400052 100644
--- a/src/testdir/test_highlight.vim
+++ b/src/testdir/test_highlight.vim
@@ -610,6 +610,14 @@
call TermWait(buf)
call VerifyScreenDump(buf, 'Test_cursorcolumn_insert_on_tab_2', {})
+ call term_sendkeys(buf, "\<C-O>")
+ call TermWait(buf)
+ call VerifyScreenDump(buf, 'Test_cursorcolumn_insert_on_tab_3', {})
+
+ call term_sendkeys(buf, 'i')
+ call TermWait(buf)
+ call VerifyScreenDump(buf, 'Test_cursorcolumn_insert_on_tab_2', {})
+
call StopVimInTerminal(buf)
call delete('Xcuc_insert_on_tab')
endfunc