$ git clone -n https://src.fedoraproject.org/rpms/ocaml-res.git /var/lib/mock/f45-build-20710-573/root/chroot_tmpdir/scmroot/ocaml-res
Cloning into '/var/lib/mock/f45-build-20710-573/root/chroot_tmpdir/scmroot/ocaml-res'...
$ git fetch origin 2324519668cf7ed4541484185ee0ef526876e239:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-res
 * [new ref]         2324519668cf7ed4541484185ee0ef526876e239 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2324519 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild