$ git clone -n https://gitee.com/wenyuzifang/tftp.git /var/lib/mock/dist-an23-build-507635-74937/root/chroot_tmpdir/scmroot/tftp
Cloning into '/var/lib/mock/dist-an23-build-507635-74937/root/chroot_tmpdir/scmroot/tftp'...
$ git fetch origin 588e40ddb6ef2ca87817b9c9d7eac7d8ca48a8f0:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/tftp
 * [new ref]         588e40ddb6ef2ca87817b9c9d7eac7d8ca48a8f0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 588e40d Update code from upstream