$ git clone -n https://src.fedoraproject.org/rpms/golang-gitlab-ianbruene-kommandant.git /var/lib/mock/f45-build-12690-443/root/chroot_tmpdir/scmroot/golang-gitlab-ianbruene-kommandant
Cloning into '/var/lib/mock/f45-build-12690-443/root/chroot_tmpdir/scmroot/golang-gitlab-ianbruene-kommandant'...
$ git fetch origin b21d98d1ae7320cbc34ea4049ff10012181a4e3c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-gitlab-ianbruene-kommandant
 * [new ref]         b21d98d1ae7320cbc34ea4049ff10012181a4e3c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b21d98d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild