def clear(self):
        self._committed = False
        self._chunks_encountered = False
        self._cells.clear()
A valueable lesson in how to botch a simple tri-state boolean.
dataset/ETHPy150Open GoogleCloudPlatform/gcloud-python/gcloud/bigtable/row_data.py/PartialRowData.clear--crossover with--dataset/ETHPy150Open BD2KGenomics/toil/src/toil/jobStores/aws/jobStore.py/AWSJobStore.__getBucketVersioning