$ git clone -n https://src.fedoraproject.org/rpms/ocaml-libvirt.git /var/lib/mock/f40-build-2057664-49124/root/chroot_tmpdir/scmroot/ocaml-libvirt
Cloning into '/var/lib/mock/f40-build-2057664-49124/root/chroot_tmpdir/scmroot/ocaml-libvirt'...
$ git fetch origin d47ef3a20830c7114b8c9864fe040fae98791ff5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-libvirt
 * [new ref]         d47ef3a20830c7114b8c9864fe040fae98791ff5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d47ef3a OCaml 5.1.1 rebuild for Fedora 40