$ git clone -n https://src.fedoraproject.org/rpms/ocaml-cudf.git /var/lib/mock/f38-build-side-42-init-devel-686535-26759/root/chroot_tmpdir/scmroot/ocaml-cudf
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-686535-26759/root/chroot_tmpdir/scmroot/ocaml-cudf'...
$ git fetch origin 30e4c1b8bb6d4bdd1b327ae563e3f628b9b422b0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-cudf
 * [new ref]         30e4c1b8bb6d4bdd1b327ae563e3f628b9b422b0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 30e4c1b Bump release and rebuild