Description of problem:
When an admin adds a user to a group they are not eligible for on the user edit page a review is created with the flag for that group.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Find a manage group with login regex set to !@, no user can will match this
2. Find a user not in the group and add them to the group on the user admin page
Group review request is created.
Group review request is blocked.
Need to check what happens if someone sets the flag to + on the bug.
Consider disabling the group on the user admin page so it can't be accidentally selected.