Description of problem:
After adding my user to the desktop_admin_r group, root authentication via polkit no longer works

Version-Release number of selected component (if applicable):
polkit-0.95-0.git20090913.3.fc12.x86_64

How reproducible:
always

Steps to Reproduce:
1. useradd -G desktop_admin_r chris
2. pkexec somecommand
  
Actual results:
Password dialog insists on a wrong password although it was entered correctly.

Expected results:
Adding a user to an additional group should not result in a spurious password error. It must still be possible to get additional privileges after provding the pw. If this is not yet implemented, I suggest to remove the esktop_admin_r group to avoid confusion.