From e06936125a628d8a61069f5fbce68394292db4df Mon Sep 17 00:00:00 2001
From: Tony Chen <36219739+chentau@users.noreply.github.com>
Date: Wed, 6 Oct 2021 12:35:44 -0400
Subject: fix(extmarks): splice extmarks on nv_Undo #15920

---
 src/nvim/undo.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src')

diff --git a/src/nvim/undo.c b/src/nvim/undo.c
index d5857ff8b9..500845ec72 100644
--- a/src/nvim/undo.c
+++ b/src/nvim/undo.c
@@ -3085,6 +3085,8 @@ void u_undoline(void)
   oldp = u_save_line(curbuf->b_u_line_lnum);
   ml_replace(curbuf->b_u_line_lnum, curbuf->b_u_line_ptr, true);
   changed_bytes(curbuf->b_u_line_lnum, 0);
+  extmark_splice_cols(curbuf, (int)curbuf->b_u_line_lnum-1, 0, (colnr_T)STRLEN(oldp),
+      (colnr_T)STRLEN(curbuf->b_u_line_ptr), kExtmarkUndo);
   xfree(curbuf->b_u_line_ptr);
   curbuf->b_u_line_ptr = oldp;
 
-- 
cgit