Fix: changing case of a character removed combining characters.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/ops.c b/src/ops.c
index beab33c15..98bd2d171 100644
--- a/src/ops.c
+++ b/src/ops.c
@@ -2433,7 +2433,8 @@ swapchar(op_type, pos)
 	    pos_T   sp = curwin->w_cursor;
 
 	    curwin->w_cursor = *pos;
-	    del_char(FALSE);
+	    /* don't use del_char(), it also removes composing chars */
+	    del_bytes(utf_ptr2len(ml_get_cursor()), FALSE, FALSE);
 	    ins_char(nc);
 	    curwin->w_cursor = sp;
 	}