If state_permission_role_list_dict is not yet set in a Workflow State, the UI displays permission/role table with all unchecked.
Once we save it in Permissions tab without checking anything, state_permission_role_list_dict will become like
  {'Access contents information': (),
   'Add portal content': (),
   'Modify portal content': (),
   'View': ()}
This commit will make the behaviour same for these 'before save' and 'after save' cases as the UI displays exactly same.