$ git clone -n https://src.fedoraproject.org/rpms/lbzip2-utils.git /var/lib/mock/f45-build-15675-478/root/chroot_tmpdir/scmroot/lbzip2-utils
Cloning into '/var/lib/mock/f45-build-15675-478/root/chroot_tmpdir/scmroot/lbzip2-utils'...
$ git fetch origin 1452da221e5188bef469842298f1a3cabe1f5757:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lbzip2-utils
 * [new ref]         1452da221e5188bef469842298f1a3cabe1f5757 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1452da2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild