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_.




airflow/providers/google/cloud/transfers/gcs_to_gcs.py
"""
    Copies objects from a bucket to another, with renaming if requested.
    .. seealso::
        For more information on how to use this operator, take a look at the guide:
        :ref:`howto/operator:GCSToGCSOperator`
    :param source_bucket: The source Google Cloud Storage bucket where the
         object is. (templated)
    :type source_bucket: str
    :param source_object: The source name of the object to copy in the Google cloud
        storage bucket. (templated)
        You can use only one wildcard for objects (filenames) within your
        bucket. The wildcard can appear inside the object name or at the
        end of the object name. Appending a wildcard to the bucket name is
        unsupported.
    :type source_object: str
    :param source_objects: A list of source name of the objects to copy in the Google cloud
        storage bucket. (templated)
    :type source_objects: List[str]
    :param destination_bucket: The destination Google Cloud Storage bucket
        where the object should be. If the destination_bucket is None, it defaults
        to source_bucket. (templated)
    :type destination_bucket: str