$ git clone -n https://src.fedoraproject.org/rpms/ocaml-ppx-variants-conv.git /var/lib/mock/f41-build-side-1-3002425-36543/root/chroot_tmpdir/scmroot/ocaml-ppx-variants-conv
Cloning into '/var/lib/mock/f41-build-side-1-3002425-36543/root/chroot_tmpdir/scmroot/ocaml-ppx-variants-conv'...
$ git fetch origin eb5b6c1ada718c53626827cdb950cd71e501840a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-ppx-variants-conv
 * [new ref]         eb5b6c1ada718c53626827cdb950cd71e501840a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb5b6c1 Rebuild for ocaml-ppxlib 0.33.0