'Check if the we try to update with the default value, the update
happens correctly
@since 3.9
@jira_ticket PYTHON-657
@expected_result column value should be updated
:return:'

def test_value_is_written_if_is_default(self):

    initial = ModelWithDefault(id=1)
    initial.mf = {0: 0}
    initial.dummy = 42
    initial.udt_default = self.udt_default
    initial.update()
    self.assertEqual(ModelWithDefault.get()._as_dict(), {'id': 1, 'dummy': 42, 'mf': {0: 0}, 'udt': None, 'udt_default': self.udt_default})
