$ git clone -n https://src.fedoraproject.org/rpms/ocaml-gen.git /var/lib/mock/f41-build-811965-147631/root/chroot_tmpdir/scmroot/ocaml-gen
Cloning into '/var/lib/mock/f41-build-811965-147631/root/chroot_tmpdir/scmroot/ocaml-gen'...
$ git fetch origin cd5ff591294988d166c869b55ed3b4f01f73136e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-gen
 * [new ref]         cd5ff591294988d166c869b55ed3b4f01f73136e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cd5ff59 OCaml 5.2.0 for Fedora 41