$ git clone -n https://src.fedoraproject.org/rpms/ocaml-ppxlib.git /var/lib/mock/f42-build-865722-173451/root/chroot_tmpdir/scmroot/ocaml-ppxlib
Cloning into '/var/lib/mock/f42-build-865722-173451/root/chroot_tmpdir/scmroot/ocaml-ppxlib'...
$ git fetch origin eba5e2e70105d06cbb075426a7a7a087046c8b74:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-ppxlib
 * [new ref]         eba5e2e70105d06cbb075426a7a7a087046c8b74 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eba5e2e OCaml 5.3.0 rebuild for Fedora 42