$ git clone -n https://src.fedoraproject.org/rpms/ocaml-zed.git /var/lib/mock/f40-build-739789-109290/root/chroot_tmpdir/scmroot/ocaml-zed
Cloning into '/var/lib/mock/f40-build-739789-109290/root/chroot_tmpdir/scmroot/ocaml-zed'...
$ git fetch origin 91cab15135040077dc2c72617d411b1dff471f2a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-zed
 * [new ref]         91cab15135040077dc2c72617d411b1dff471f2a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 91cab15 OCaml 5.1 rebuild for Fedora 40