$ git clone -n https://gitee.com/wenjie2025/tftp.git /var/lib/mock/dist-an23-build-506800-74878/root/chroot_tmpdir/scmroot/tftp
Cloning into '/var/lib/mock/dist-an23-build-506800-74878/root/chroot_tmpdir/scmroot/tftp'...
$ git fetch origin 31971a314d3de18dfddf5bf5875e2b06cccd0178:KOJI_FETCH_HEAD
From https://gitee.com/wenjie2025/tftp
 * [new ref]         31971a314d3de18dfddf5bf5875e2b06cccd0178 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 31971a3 Update code from upstream