$ git clone -n https://gitee.com/src-opencloudos-rpms/ocaml-dune.git /var/lib/mock/dist-oc9-build-235861-82208/root/chroot_tmpdir/scmroot/ocaml-dune
Cloning into '/var/lib/mock/dist-oc9-build-235861-82208/root/chroot_tmpdir/scmroot/ocaml-dune'...
$ git fetch origin dca0e97af911cebc749715dcc9afdb54640317ad:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/ocaml-dune
 * [new ref]         dca0e97af911cebc749715dcc9afdb54640317ad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dca0e97 import ocaml-dune-3.16.0-5.tl4