$ git clone -n https://src.fedoraproject.org/rpms/ocaml-lablgtk3.git /var/lib/mock/f38-build-side-42-init-devel-800658-28144/root/chroot_tmpdir/scmroot/ocaml-lablgtk3
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-800658-28144/root/chroot_tmpdir/scmroot/ocaml-lablgtk3'...
$ git fetch origin 5f57da31926fb4e33850d642d78d1bea33503852:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-lablgtk3
 * [new ref]         5f57da31926fb4e33850d642d78d1bea33503852 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5f57da3 Rebuild OCaml packages for F38