$ git clone -n https://src.fedoraproject.org/rpms/ocaml-ppx-js-style.git /var/lib/mock/f38-build-side-42-init-devel-774096-27772/root/chroot_tmpdir/scmroot/ocaml-ppx-js-style
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-774096-27772/root/chroot_tmpdir/scmroot/ocaml-ppx-js-style'...
$ git fetch origin 9d4b94121c03991e9278203a0be6d000860ad9cd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-ppx-js-style
 * [new ref]         9d4b94121c03991e9278203a0be6d000860ad9cd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9d4b941 Rebuild OCaml packages for F38