$ git clone -n https://gitee.com/src-opencloudos-rpms/tracker.git /var/lib/mock/dist-oc9-build-60029-16463/root/chroot_tmpdir/scmroot/tracker
Cloning into '/var/lib/mock/dist-oc9-build-60029-16463/root/chroot_tmpdir/scmroot/tracker'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/tracker
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 466970a import tracker-3.5.3-3.tl4