updated for version 7.1-329
diff --git a/src/screen.c b/src/screen.c
index 3a585ff..7945866 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -4863,6 +4863,7 @@
* - the (first byte of the) character is different
* - the attributes are different
* - the character is multi-byte and the next byte is different
+ * - the character is two cells wide and the second cell differs.
*/
static int
char_needs_redraw(off_from, off_to, cols)
@@ -4884,7 +4885,9 @@
|| (enc_utf8
&& (ScreenLinesUC[off_from] != ScreenLinesUC[off_to]
|| (ScreenLinesUC[off_from] != 0
- && comp_char_differs(off_from, off_to))))
+ && comp_char_differs(off_from, off_to))
+ || (cols > 1 && ScreenLines[off_from + 1]
+ != ScreenLines[off_to + 1])))
#endif
))
return TRUE;