$ git clone -n https://src.fedoraproject.org/rpms/python-launchpadlib.git /var/lib/mock/f45-build-31377-652/root/chroot_tmpdir/scmroot/python-launchpadlib
Cloning into '/var/lib/mock/f45-build-31377-652/root/chroot_tmpdir/scmroot/python-launchpadlib'...
$ git fetch origin a421bdb0691e172c9ccc2534e89f4188d5af220d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-launchpadlib
 * [new ref]         a421bdb0691e172c9ccc2534e89f4188d5af220d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a421bdb Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild