'Test for leaking Model._meta.db_table monkeypatching on SQLite (#3891).'

def test_placeholder_field_db_table(self):

    example = Category.objects.create(name='category', parent=None, depth=1)
    self.assertEqual(example.description._get_attached_fields()[0].model, Category)
    self.assertEqual(len(example.description._get_attached_fields()), 1)
