$ git clone -n https://src.fedoraproject.org/rpms/qdmr.git /var/lib/mock/f45-build-33909-674/root/chroot_tmpdir/scmroot/qdmr
Cloning into '/var/lib/mock/f45-build-33909-674/root/chroot_tmpdir/scmroot/qdmr'...
$ git fetch origin 94cdf7a3dd2dc2e2e103555924cf1a9500cdc442:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qdmr
 * [new ref]         94cdf7a3dd2dc2e2e103555924cf1a9500cdc442 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 94cdf7a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild