$ git clone -n https://gitee.com/src-opencloudos-rpms/autotrace.git /var/lib/mock/dist-oc9-build-40653-14589/root/chroot_tmpdir/scmroot/autotrace
Cloning into '/var/lib/mock/dist-oc9-build-40653-14589/root/chroot_tmpdir/scmroot/autotrace'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/autotrace
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 254b428 import autotrace-0.31.1-3.tl4