Merge pull request #17647 from neovim/backport-16851-to-release-0.6release-0.6

[Backport release-0.6] vim-patch:8.2.3952: first line not redrawn when adding lines to an empty buffer

1 files changed, 6 insertions, 1 deletions

diff --git a/src/nvim/ex_cmds.c b/src/nvim/ex_cmds.c
index 77944851d2..e6ec4ceb3b 100644
--- a/src/nvim/ex_cmds.c
+++ b/src/nvim/ex_cmds.c
@@ -3009,7 +3009,12 @@ void ex_append(exarg_T *eap)
 
     did_undo = true;
     ml_append(lnum, theline, (colnr_T)0, false);
-    appended_lines_mark(lnum + (empty ? 1 : 0), 1L);
+    if (empty) {
+      // there are no marks below the inserted lines
+      appended_lines(lnum, 1L);
+    } else {
+      appended_lines_mark(lnum, 1L);
+    }
 
     xfree(theline);
     ++lnum;