$ git clone -n https://gitee.com/src-opencloudos-rpms/yelp-tools.git /var/lib/mock/dist-oc9-build-60714-16463/root/chroot_tmpdir/scmroot/yelp-tools
Cloning into '/var/lib/mock/dist-oc9-build-60714-16463/root/chroot_tmpdir/scmroot/yelp-tools'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/yelp-tools
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5f80884 import yelp-tools-42.1-4.tl4