Crowd Integration: Members of crowd "admin" groups are not FECRU admins

specifiying a crowd group as "administrator group" doesn't give that group's members admin rights... they're still asked for the "root" administators password when accessing the admin area.
When setting the members of that crowd group individually to be fisheye admin users they are admin and can access the admin area without being asked for the "root" password anylonger.
I also noticed that users don't have the "admin" field set to "true" in the fisheye users list unless they're added individually to the admin users even though they are in a crowd group that is marked as admin group.