$ git clone -n https://gitee.com/wency_cn/galera_1770756433.git /var/lib/mock/dist-an23-build-513283-75099/root/chroot_tmpdir/scmroot/galera_1770756433
Cloning into '/var/lib/mock/dist-an23-build-513283-75099/root/chroot_tmpdir/scmroot/galera_1770756433'...
$ git fetch origin d17dc7fd4a5af4ff481bc7a203a2e847def4acce:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/galera_1770756433
 * [new ref]         d17dc7fd4a5af4ff481bc7a203a2e847def4acce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d17dc7f Update code from upstream