$ git clone -n https://gitee.com/wency_cn/tftp.git /var/lib/mock/dist-an23-build-502912-74825/root/chroot_tmpdir/scmroot/tftp
Cloning into '/var/lib/mock/dist-an23-build-502912-74825/root/chroot_tmpdir/scmroot/tftp'...
$ git fetch origin 707ceb1c434dbc9ff48b29d5f3bfa8c63660cad9:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/tftp
 * [new ref]         707ceb1c434dbc9ff48b29d5f3bfa8c63660cad9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 707ceb1 Update code from upstream