$ git clone -n https://gitee.com/wency_cn/dnsmasq.git /var/lib/mock/dist-an23-build-502037-74794/root/chroot_tmpdir/scmroot/dnsmasq
Cloning into '/var/lib/mock/dist-an23-build-502037-74794/root/chroot_tmpdir/scmroot/dnsmasq'...
$ git fetch origin c621ac05d1b25852ea01e99ffde06a39eeb6b765:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/dnsmasq
 * [new ref]         c621ac05d1b25852ea01e99ffde06a39eeb6b765 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c621ac0 Update code from upstream