$ git clone -n https://gitee.com/src-opencloudos-rpms/dim_tools.git /var/lib/mock/dist-oc9-build-120670-71410/root/chroot_tmpdir/scmroot/dim_tools
Cloning into '/var/lib/mock/dist-oc9-build-120670-71410/root/chroot_tmpdir/scmroot/dim_tools'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/dim_tools
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bfbdc8e import dim_tools-1.0.1-1.tl4