$ git clone -n https://gitee.com/wenyuzifang/radvd.git /var/lib/mock/dist-an23-build-472706-74118/root/chroot_tmpdir/scmroot/radvd
Cloning into '/var/lib/mock/dist-an23-build-472706-74118/root/chroot_tmpdir/scmroot/radvd'...
$ git fetch origin 8f93002e8ec3203be4e20b59bcc8120713593169:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/radvd
 * [new ref]         8f93002e8ec3203be4e20b59bcc8120713593169 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8f93002 Update code from upstream