$ git clone -n https://src.fedoraproject.org/rpms/ocaml-ppxlib.git /var/lib/mock/f38-build-side-42-init-devel-753079-27663/root/chroot_tmpdir/scmroot/ocaml-ppxlib
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-753079-27663/root/chroot_tmpdir/scmroot/ocaml-ppxlib'...
$ git fetch origin bdaebeaa3cfacda27f4a71536bfc7fd51ba4432b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-ppxlib
 * [new ref]         bdaebeaa3cfacda27f4a71536bfc7fd51ba4432b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bdaebea Rebuild OCaml packages for F38