$ git clone -n https://gitee.com/wenyuzifang/unbound_1770273122.git /var/lib/mock/dist-an23-build-511771-75070/root/chroot_tmpdir/scmroot/unbound_1770273122
Cloning into '/var/lib/mock/dist-an23-build-511771-75070/root/chroot_tmpdir/scmroot/unbound_1770273122'...
$ git fetch origin c821907a606aa5961f5d5a1694eb0c50d66a49aa:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/unbound_1770273122
 * [new ref]         c821907a606aa5961f5d5a1694eb0c50d66a49aa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c821907 Update code from upstream