The problem is that RemoteRepositoryFormat._matchingbzrdir is set to the class RemoteBzrDirFormat at class level, and because of details in the way the repository format test multiplication is done, this attribute isn't actually accessed very much during the test suite.
The problem is that RemoteRepositor yFormat. _matchingbzrdir is set to the class RemoteBzrDirFormat at class level, and because of details in the way the repository format test multiplication is done, this attribute isn't actually accessed very much during the test suite.