Comment 3 for bug 1002950

This also has the side effect that users-admin will allow deletion of the last remaining true administrator account. Administrative accounts are presumably considered such due to their membership in the adm group, but newly created administrative accounts lack such privileges. users-admin will then happily attempt to remove all other administrative accounts that actually do have admin permissions, such as the account created during installation. (The account won't properly be removed however due to bug #1002700.)

I'm not sure that this should be filed as a new bug as it appears to be a side effect of this bug.