$ git clone -n https://gitee.com/src-opencloudos-rpms/sos /var/lib/mock/dist-oc9-build-66756-17137/root/chroot_tmpdir/scmroot/sos
Cloning into '/var/lib/mock/dist-oc9-build-66756-17137/root/chroot_tmpdir/scmroot/sos'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/sos
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2d9c6f8 debrand sos 4.5.5-3.tl4.1 For OpenCloudOS