$ git clone -n https://src.fedoraproject.org/rpms/ocaml-ocamlbuild.git /var/lib/mock/f45-build-20610-572/root/chroot_tmpdir/scmroot/ocaml-ocamlbuild
Cloning into '/var/lib/mock/f45-build-20610-572/root/chroot_tmpdir/scmroot/ocaml-ocamlbuild'...
$ git fetch origin 7325248bd8be4193c78aab2bd05b8394dbaf4677:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-ocamlbuild
 * [new ref]         7325248bd8be4193c78aab2bd05b8394dbaf4677 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7325248 OCaml 5.5.1 rebuild