$ git clone -n https://src.fedoraproject.org/rpms/ocaml-fmt.git /var/lib/mock/f38-build-side-42-init-devel-800636-28144/root/chroot_tmpdir/scmroot/ocaml-fmt
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-800636-28144/root/chroot_tmpdir/scmroot/ocaml-fmt'...
$ git fetch origin 9c150d33d98c7707f5dea5040b8ae20807dbd484:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-fmt
 * [new ref]         9c150d33d98c7707f5dea5040b8ae20807dbd484 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9c150d3 Rebuild OCaml packages for F38