Custom roles pattern not respected in ACL tab

[habitant6685]

The custom roles pattern seems to not be respected when trying to add roles that are not in the Opencast database (e.g. LDAP users).

Issue seems similar to opencast/opencast#5016.

[lkiesow]

Maybe instead of this (somewhat weird) ACL pattern you configure in the backend we could just add a button “Add custom role” were you cab just enter any role? I think that will also work better with the new UI proposed in #561.

[habitant6685]

I'd agree that adding a more general option to add custom roles might be the more sensible solution moving forward, especially considering that the ACL pattern has often caused bugs in the past.