def _createEmptyJobWrapperForJob(self, jobStore, command=None, predecessorNumber=0):
        requirements = self.effectiveRequirements(jobStore.config)
        del requirements.cache
        return jobStore.create(command=command, predecessorNumber=predecessorNumber, **requirements)
Any existing configuration is wiped by ``/configuration/_compose``.
dataset/ETHPy150Open BD2KGenomics/toil/src/toil/job.py/Job._createEmptyJobWrapperForJob--crossover with--dataset/ETHPy150Open ClusterHQ/flocker/flocker/control/test/test_httpapi.py/ConfigurationComposeTestsMixin.test_overwrite_existing