$ git clone -n https://src.fedoraproject.org/rpms/sheepdog.git /var/lib/mock/f39-build-1577419-37963/root/chroot_tmpdir/scmroot/sheepdog
Cloning into '/var/lib/mock/f39-build-1577419-37963/root/chroot_tmpdir/scmroot/sheepdog'...
$ git fetch origin f9996fbd9853d3509fca36e304c026f860475dd5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sheepdog
 * [new ref]         f9996fbd9853d3509fca36e304c026f860475dd5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f9996fb Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild