$ git clone -n https://src.fedoraproject.org/rpms/ocaml-qcheck.git /var/lib/mock/f38-build-side-42-init-devel-774119-27772/root/chroot_tmpdir/scmroot/ocaml-qcheck
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-774119-27772/root/chroot_tmpdir/scmroot/ocaml-qcheck'...
$ git fetch origin 538ba3eafd73328d143db940e660cf9a74f7a762:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-qcheck
 * [new ref]         538ba3eafd73328d143db940e660cf9a74f7a762 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 538ba3e Rebuild OCaml packages for F38