--- a/regcomp.c	2018-05-21 20:29:23.000000000 +0800
+++ b/regcomp-change.c	2019-04-11 09:51:08.493000000 +0800
@@ -15591,7 +15591,6 @@ redo_curchar:
                     if (UCHARAT(RExC_parse) != ')')
                         vFAIL("Expecting close paren for wrapper for nested extended charclass");
 
-                    RExC_parse++;
                     RExC_flags = save_flags;
                     goto handle_operand;
                 }