$ git clone -n https://src.fedoraproject.org/rpms/ocaml-camlp-streams.git /var/lib/mock/f38-build-side-42-init-devel-694966-26979/root/chroot_tmpdir/scmroot/ocaml-camlp-streams
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-694966-26979/root/chroot_tmpdir/scmroot/ocaml-camlp-streams'...
$ git fetch origin 54f77f25685cf9f8098d748af99394b06f088742:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-camlp-streams
 * [new ref]         54f77f25685cf9f8098d748af99394b06f088742 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 54f77f2 Rebuild OCaml packages for F38