$ git clone -n https://src.fedoraproject.org/rpms/smp_utils.git /var/lib/mock/f45-build-36147-701/root/chroot_tmpdir/scmroot/smp_utils
Cloning into '/var/lib/mock/f45-build-36147-701/root/chroot_tmpdir/scmroot/smp_utils'...
$ git fetch origin bc710318743eb2d2833d8796fddea48cab09a6a3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/smp_utils
 * [new ref]         bc710318743eb2d2833d8796fddea48cab09a6a3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bc71031 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild