HV-920 Adding a regular expression based URL constraint validator which ...

...needs to be configured via XML or via a ConstraintDefinitionContributor
Yes, my question is more about the relationship/interaction of the two reg-exps.

When discussing HV-920, there was the idea that the user could override that new fancy reg-exp in case it turns out there is an issue with it. IIUC, that's not possible with the suggested approach, both expressions will be applied, right?