$ git clone -n https://src.fedoraproject.org/rpms/cachefilesd.git /var/lib/mock/f39-build-1456301-32921/root/chroot_tmpdir/scmroot/cachefilesd
Cloning into '/var/lib/mock/f39-build-1456301-32921/root/chroot_tmpdir/scmroot/cachefilesd'...
$ git fetch origin b761c55fa8babc63e3f838d55cfb439871689c1a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cachefilesd
 * [new ref]         b761c55fa8babc63e3f838d55cfb439871689c1a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b761c55 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild