$ git clone -n https://gitee.com/wency_cn/tftp.git /var/lib/mock/dist-an23-build-507573-74928/root/chroot_tmpdir/scmroot/tftp
Cloning into '/var/lib/mock/dist-an23-build-507573-74928/root/chroot_tmpdir/scmroot/tftp'...
$ git fetch origin 30913248086c9982d9e0716baf81de9454b3aeb6:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/tftp
 * [new ref]         30913248086c9982d9e0716baf81de9454b3aeb6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3091324 Update code from upstream