The GCStoGCS operator using the _replace=False_ flag and specifying _source_object != destination_object_, will not work properly, because it is comparing [apples](https://github.com/apache/airflow/blob/main/airflow/providers/google/cloud/transfers/gcs_to_gcs.py#L351) with [pears](https://github.com/apache/airflow/blob/0dd70de9492444d52e0afaadd7a510fc8a95369c/airflow/providers/google/cloud/transfers/gcs_to_gcs.py#L357).

Cause: the _prefix_ in the _pears_ case needs to be calculated from the _destination_object_, however, it is coming from the _source_object_.




tests/providers/google/cloud/transfers/test_gcs_to_gcs.py
mock_hook.return_value.list.return_value = SOURCE_FILES_LIST
        operator = GCSToGCSOperator(
            task_id=TASK_ID,
            source_bucket=TEST_BUCKET,
            source_object=SOURCE_OBJECT_MULTIPLE_WILDCARDS,
            destination_bucket=DESTINATION_BUCKET,
            destination_object=DESTINATION_OBJECT_PREFIX,
        )
        total_wildcards = operator.source_object.count(WILDCARD)
        error_msg = "Only one wildcard '[*]' is allowed in source_object parameter. Found {}".format(
            total_wildcards
        )
        with pytest.raises(AirflowException, match=error_msg):
            operator.execute(None)
    @mock.patch('airflow.providers.google.cloud.transfers.gcs_to_gcs.GCSHook')
    def test_execute_with_empty_destination_bucket(self, mock_hook):