I just tested it and it works for me. There is caching
for the regular
expression pattern itself but if the pattern was changed, the new value
is cached so this caching cannot be the cause of what you see. Are you
100% certain that there is not another pattern which matches "creditcard"?
it could be that this is related to my third posting: Maybe we switch to a regex
that started with capital letter, which obviously doesn't work.
If so can you add a feature request to JIRA
I will do so.