$ git clone -n https://src.fedoraproject.org/rpms/cylindrix.git /var/lib/mock/f45-build-5861-342/root/chroot_tmpdir/scmroot/cylindrix
Cloning into '/var/lib/mock/f45-build-5861-342/root/chroot_tmpdir/scmroot/cylindrix'...
$ git fetch origin fbeda8032fe669a99e3c62b62343e06b0288b699:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cylindrix
 * [new ref]         fbeda8032fe669a99e3c62b62343e06b0288b699 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fbeda80 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild