$ git clone -n https://gitee.com/src-opencloudos-rpms/booth.git /var/lib/mock/dist-oc9-build-45854-14592/root/chroot_tmpdir/scmroot/booth
Cloning into '/var/lib/mock/dist-oc9-build-45854-14592/root/chroot_tmpdir/scmroot/booth'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/booth
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4d0b579 import booth-1.0-3.git9d4029a.tl4