Removing one role from an Access Policy (acl-det-05)

Steps to reproduce:
1. Go to Access Policy and Press the Edit icon
2. Delete Role using delete button
3. Close the modal and reopen

delete does not work (using the delete button): Actual Results:
MATTERHORN_ADMINISTRATOR (Haken) (Haken)
ROLE_ADMIN (Haken)
ROLE_ADMIN_UI (Haken)
Expected Results:
MATTERHORN_ADMINISTRATOR (Haken) (Haken)
ROLE_ADMIN (Haken)