Make sure that if a user is direct committer, they can always commit
    
    This fixes the case where the user is in an EXTERNAL_COMMITTER group that is
    excluded from a specific repository, but they are actually a direct committer
    (or in a group that is a direct committer) for that repository.
    
    Example for Fedora Dist-Git: commit for "rpms/firefox" if one of the firefox
    maintainers were provenpackager.
    
    Signed-off-by: Patrick Uiterwijk <patrick@puiterwijk.org>