$ git clone -n https://gitee.com/opencloudos-stream/bcel.git /var/lib/mock/dist-ocs23-build-45151-2059/root/chroot_tmpdir/scmroot/bcel
Cloning into '/var/lib/mock/dist-ocs23-build-45151-2059/root/chroot_tmpdir/scmroot/bcel'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/bcel
 * [new ref]         HEAD       -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e9de236 OCS package init