$ git clone -n https://gitee.com/src-opencloudos-rpms/sac.git /var/lib/mock/dist-oc9-build-52247-14596/root/chroot_tmpdir/scmroot/sac
Cloning into '/var/lib/mock/dist-oc9-build-52247-14596/root/chroot_tmpdir/scmroot/sac'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/sac
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e9c2bb2 import sac-1.3-3.tl4