granting group admin rights for a single project doesn't seem to work

I did this:

• created an OpenJPA group from the front page
• put a user in the OpenJPA administrator role (which implies developer, user).
• the user did not receive any "add project" buttons, and when going to the OpenJPA group > Members tab, they are ticked as a dev/user, but not an admin.

Workaround:

• put the user in the continuum project group admin role