$ git clone -n https://gitee.com/wency_cn/prefixdevname.git /var/lib/mock/dist-an23-build-491060-74530/root/chroot_tmpdir/scmroot/prefixdevname
Cloning into '/var/lib/mock/dist-an23-build-491060-74530/root/chroot_tmpdir/scmroot/prefixdevname'...
$ git fetch origin bf1096f11cd652d76490383a5ece212adbac7941:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/prefixdevname
 * [new ref]         bf1096f11cd652d76490383a5ece212adbac7941 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf1096f Update code from upstream