$ git clone -n https://gitee.com/opencloudos-stream/ppp.git /var/lib/mock/dist-ocs23-build-43434-2059/root/chroot_tmpdir/scmroot/ppp
Cloning into '/var/lib/mock/dist-ocs23-build-43434-2059/root/chroot_tmpdir/scmroot/ppp'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/ppp
 * [new ref]         HEAD       -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2aab15a !1 Upgrade to version 2.5.0 Merge pull request !1 from gordonwwang/master