Comment 9 for bug 1549095

for here: https://github.com/openstack/python-openstackclient/blob/master/openstackclient/identity/v3/token.py#L175

we should check to see if there is a valid 'auth_ref':

  token = self.app.client_manager.auth_ref.service_catalog.get_token()

because in the case of using the ADMIN_TOKEN, it carries no authorization or authentication data, it's a bypass mechanism, so auth_ref isn't set