'Regression test for #13963'

def test_related_name(self):

    self.assertEqual(label_for_field(u'location', Event, return_attr=True), (u'location', None))
    self.assertEqual(label_for_field(u'event', Location, return_attr=True), (u'awesome    event', None))
    self.assertEqual(label_for_field(u'guest', Event, return_attr=True), (u'awesome    guest', None))
