$ git clone -n https://src.fedoraproject.org/rpms/golang-mau-util.git /var/lib/mock/f45-build-12692-443/root/chroot_tmpdir/scmroot/golang-mau-util
Cloning into '/var/lib/mock/f45-build-12692-443/root/chroot_tmpdir/scmroot/golang-mau-util'...
$ git fetch origin baa2ec34c15b8e0cba7a2a4ed1cc0f798958fc14:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-mau-util
 * [new ref]         baa2ec34c15b8e0cba7a2a4ed1cc0f798958fc14 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at baa2ec3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild