$ git clone -n https://gitee.com/wency_cn/tftp.git /var/lib/mock/dist-an23-build-508224-74974/root/chroot_tmpdir/scmroot/tftp
Cloning into '/var/lib/mock/dist-an23-build-508224-74974/root/chroot_tmpdir/scmroot/tftp'...
$ git fetch origin 92271476532fa1eb15829281da718eb30d1d40f8:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/tftp
 * [new ref]         92271476532fa1eb15829281da718eb30d1d40f8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9227147 Update code from upstream