Description of problem:
When user deletes a role, the role details view should close automatically, disallowing user to attempt to make changes to the nonexistent role.

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.  Create a new role
2.  Select role from roles view
3.  Edit Role Details
4.  Click the "Remove Role" button and confirm
5.  Not role is removed from left pane; attempt to change name or description in still-existent role details window  
Actual results:

Error-
 wrong number of arguments (0 for 1)

Expected results:
Users shouldn't be allowed to do this in the first place. Window should close if role is deleted.

Additional info: