Wikimedia Bugzilla is closed!

Currently, an extension writer can define effective groups by catching the UserEffectiveGroups hook fired in User->getEffectiveGroups().  The user can also use this hook to add a user to implicit groups other then the standard '*', 'user', 'autoconfirmed', and 'emailconfirmed' groups.  However, any implicit groups defined still show up in the user rights management interface because the function User->getAllGroups() hard codes the implicit groups.

I would like a hook or global variable to allow my extension to define new implicit groups.