$ git clone -n https://gitee.com/src-opencloudos-rpms/ocaml.git /var/lib/mock/dist-oc9-build-235855-82207/root/chroot_tmpdir/scmroot/ocaml
Cloning into '/var/lib/mock/dist-oc9-build-235855-82207/root/chroot_tmpdir/scmroot/ocaml'...
$ git fetch origin bebfd05014948f711f72dc8cca7aa60c64758399:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/ocaml
 * [new ref]         bebfd05014948f711f72dc8cca7aa60c64758399 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bebfd05 import ocaml-5.2.0-7.tl4