$ git clone -n https://src.fedoraproject.org/rpms/ocaml-ppx-bench.git /var/lib/mock/f45-build-20652-572/root/chroot_tmpdir/scmroot/ocaml-ppx-bench
Cloning into '/var/lib/mock/f45-build-20652-572/root/chroot_tmpdir/scmroot/ocaml-ppx-bench'...
$ git fetch origin de8243692e6e5220edfe01f05148cde7923cbda7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-ppx-bench
 * [new ref]         de8243692e6e5220edfe01f05148cde7923cbda7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at de82436 OCaml 5.5.1 rebuild