$ git clone -n https://gitee.com/src-opencloudos-rpms/sbc.git /var/lib/mock/dist-oc9-build-44997-14591/root/chroot_tmpdir/scmroot/sbc
Cloning into '/var/lib/mock/dist-oc9-build-44997-14591/root/chroot_tmpdir/scmroot/sbc'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/sbc
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 847e769 import sbc-1.5-3.tl4