$ git clone -n https://src.fedoraproject.org/rpms/ocaml-markup.git /var/lib/mock/f38-build-side-42-init-devel-600677-26173/root/chroot_tmpdir/scmroot/ocaml-markup
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-600677-26173/root/chroot_tmpdir/scmroot/ocaml-markup'...
$ git fetch origin 5609aa944b669bc97a678b36d88a38b8ff76f04f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-markup
 * [new ref]         5609aa944b669bc97a678b36d88a38b8ff76f04f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5609aa9 Rebuild OCaml packages for F38