$ git clone -n https://gitee.com/wency_cn/sendmail.git /var/lib/mock/dist-an23-build-494339-74584/root/chroot_tmpdir/scmroot/sendmail
Cloning into '/var/lib/mock/dist-an23-build-494339-74584/root/chroot_tmpdir/scmroot/sendmail'...
$ git fetch origin ad829108413c16bd9d29018f13b7ea36a75b5594:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/sendmail
 * [new ref]         ad829108413c16bd9d29018f13b7ea36a75b5594 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ad82910 Update code from upstream