patch 8.1.1664: GUI resize may cause changing Rows at a bad time

Problem:    GUI resize may cause changing Rows at a bad time. (Dominique
            Pelle)
Solution:   Postpone resizing while updating the screen.
diff --git a/src/version.c b/src/version.c
index 7b77979..68b5465 100644
--- a/src/version.c
+++ b/src/version.c
@@ -778,6 +778,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1664,
+/**/
     1663,
 /**/
     1662,