@abc.abstractmethod
    def merge(self, other):
Fetching after a commit works.
dataset/ETHPy150Open openstack/rally/rally/common/streaming_algorithms.py/StreamingAlgorithm.merge--crossover with--dataset/ETHPy150Open twisted/ldaptor/ldaptor/test/test_ldapsyntax.py/LDAPSyntaxFetch.testCommitAndFetch