$ git clone -n https://src.fedoraproject.org/rpms/templates_parser.git /var/lib/mock/f45-build-36935-709/root/chroot_tmpdir/scmroot/templates_parser
Cloning into '/var/lib/mock/f45-build-36935-709/root/chroot_tmpdir/scmroot/templates_parser'...
$ git fetch origin 20dd04090b4b020385373b75c9f5741528a3fdab:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/templates_parser
 * [new ref]         20dd04090b4b020385373b75c9f5741528a3fdab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 20dd040 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild