$ git clone -n https://src.fedoraproject.org/rpms/ocaml-parsexp.git /var/lib/mock/f38-build-side-42-init-devel-741114-27656/root/chroot_tmpdir/scmroot/ocaml-parsexp
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-741114-27656/root/chroot_tmpdir/scmroot/ocaml-parsexp'...
$ git fetch origin 4c0f8ccece0d9fcd0c374d1786a94fddc9bdce1e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-parsexp
 * [new ref]         4c0f8ccece0d9fcd0c374d1786a94fddc9bdce1e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4c0f8cc Rebuild OCaml packages for F38