updated for version 7.4.623

Problem:    Crash with pattern: \(\)\{80000}  (Dominique Pelle)
Solution:   When the max limit is large fall back to the old engine.

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    623,
 /**/
     622,
 /**/