$ git clone -n https://src.fedoraproject.org/rpms/gl2ps.git /var/lib/mock/f45-build-11169-428/root/chroot_tmpdir/scmroot/gl2ps
Cloning into '/var/lib/mock/f45-build-11169-428/root/chroot_tmpdir/scmroot/gl2ps'...
$ git fetch origin d8e3a54ea9f46879590fd6baba1d4a7274c31a04:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gl2ps
 * [new ref]         d8e3a54ea9f46879590fd6baba1d4a7274c31a04 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d8e3a54 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild