$ git clone -n https://gitee.com/wency_cn/galera_1770950815.git /var/lib/mock/dist-an23-build-514396-75110/root/chroot_tmpdir/scmroot/galera_1770950815
Cloning into '/var/lib/mock/dist-an23-build-514396-75110/root/chroot_tmpdir/scmroot/galera_1770950815'...
$ git fetch origin d7bb176cdc8c8bf568712ce6e1357538dbd587ec:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/galera_1770950815
 * [new ref]         d7bb176cdc8c8bf568712ce6e1357538dbd587ec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d7bb176 Update code from upstream