$ git clone -n https://gitee.com/wenyuzifang/radvd.git /var/lib/mock/dist-an23-build-498640-74683/root/chroot_tmpdir/scmroot/radvd
Cloning into '/var/lib/mock/dist-an23-build-498640-74683/root/chroot_tmpdir/scmroot/radvd'...
$ git fetch origin 8c2f4d7e8865a920a6921b337399a3fbcd4340cc:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/radvd
 * [new ref]         8c2f4d7e8865a920a6921b337399a3fbcd4340cc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8c2f4d7 Update code from upstream