$ git clone -n https://gitee.com/src-opencloudos-rpms/sgabios.git /var/lib/mock/dist-oc9-build-58576-16463/root/chroot_tmpdir/scmroot/sgabios
Cloning into '/var/lib/mock/dist-oc9-build-58576-16463/root/chroot_tmpdir/scmroot/sgabios'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/sgabios
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e853629 import sgabios-0.20180715git-4.tl4