Add support for None as author or committer of a Revision
committer=None happens on some malformed commits generated by old dgit versions ; and it is possible for author=None to happen for the same reason.
Migrated from D7400 (view on Phabricator)
Staging instance, all changes can be removed at any time
committer=None happens on some malformed commits generated by old dgit versions ; and it is possible for author=None to happen for the same reason.
Migrated from D7400 (view on Phabricator)