$ git clone -n https://gitee.com/wenyuzifang/tftp.git /var/lib/mock/dist-an23-build-481926-74252/root/chroot_tmpdir/scmroot/tftp
Cloning into '/var/lib/mock/dist-an23-build-481926-74252/root/chroot_tmpdir/scmroot/tftp'...
$ git fetch origin 952544c195464e40884a0b23bf46321fd3496542:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/tftp
 * [new ref]         952544c195464e40884a0b23bf46321fd3496542 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 952544c Update code from upstream