$ git clone -n https://src.fedoraproject.org/rpms/ocaml-xml-light.git /var/lib/mock/f40-build-739721-109214/root/chroot_tmpdir/scmroot/ocaml-xml-light
Cloning into '/var/lib/mock/f40-build-739721-109214/root/chroot_tmpdir/scmroot/ocaml-xml-light'...
$ git fetch origin 976915c9b1bfc34686c91aa6cf9e4f4a221dd83b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-xml-light
 * [new ref]         976915c9b1bfc34686c91aa6cf9e4f4a221dd83b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 976915c OCaml 5.1 rebuild for Fedora 40