updated for version 7.3.1021

Problem:    New regexp engine does not ignore order of composing chars.
Solution:   Ignore composing chars order.

src/version.c

@@ -728,6 +728,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1021,
 /**/
     1020,
 /**/