$ git clone -n https://gitee.com/src-opencloudos-rpms/orc.git /var/lib/mock/dist-oc9-build-43307-14591/root/chroot_tmpdir/scmroot/orc
Cloning into '/var/lib/mock/dist-oc9-build-43307-14591/root/chroot_tmpdir/scmroot/orc'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/orc
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8c1882 import orc-0.4.31-3.tl4