$ git clone -n https://src.fedoraproject.org/rpms/ocaml-csexp.git /var/lib/mock/f39-build-2472066-61460/root/chroot_tmpdir/scmroot/ocaml-csexp
Cloning into '/var/lib/mock/f39-build-2472066-61460/root/chroot_tmpdir/scmroot/ocaml-csexp'...
$ git fetch origin f2412fe63f0bf7144255fd74a184e6ac952dec16:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-csexp
 * [new ref]         f2412fe63f0bf7144255fd74a184e6ac952dec16 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f2412fe Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild