$ git clone -n https://src.fedoraproject.org/rpms/ocaml-bin-prot.git /var/lib/mock/f42-build-866064-173700/root/chroot_tmpdir/scmroot/ocaml-bin-prot
Cloning into '/var/lib/mock/f42-build-866064-173700/root/chroot_tmpdir/scmroot/ocaml-bin-prot'...
$ git fetch origin 2be3b5cec6fb68f1f02879d660a3994ab94ee426:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-bin-prot
 * [new ref]         2be3b5cec6fb68f1f02879d660a3994ab94ee426 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2be3b5c OCaml 5.3.0 rebuild for Fedora 42