$ git clone -n https://src.fedoraproject.org/rpms/ocaml-ppx-deriving.git /var/lib/mock/f41-build-811848-147589/root/chroot_tmpdir/scmroot/ocaml-ppx-deriving
Cloning into '/var/lib/mock/f41-build-811848-147589/root/chroot_tmpdir/scmroot/ocaml-ppx-deriving'...
$ git fetch origin 754d6864a3905781e28d3b2ab3b40297a1e742ac:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-ppx-deriving
 * [new ref]         754d6864a3905781e28d3b2ab3b40297a1e742ac -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 754d686 OCaml 5.2.0 for Fedora 41