def get_valid_versions(self, group_by=None, **kwargs):
        return None
If the updated translation is identical to the source
dataset/ETHPy150Open hydroshare/hydroshare2/ga_ows/views/wms/base.py/WMSAdapterBase.get_valid_versions--crossover with--dataset/ETHPy150Open mozilla/pontoon/pontoon/sync/tests/formats/__init__.py/FormatTestsMixin.run_save_translation_identical