Succeeded trial doesn't have final result but webui show ×××(FINAL)

[lvybriage]

Short summary about the issue/question:
I run an experiment,
from webui overview table, I see that image. The trial didn't have final result.

from detail page, trial had final result!

from rest api, I found that the trial did not have final result, like this pictrue

So, it's confused. I found that detail table's final result was the latest intermediate result other than final result. But it rendered 0.160111(FINAL)

Brief what process you are following:

How to reproduce it:

nni Environment:

• nni version: 0.8
• nni mode(local|pai|remote): pai
• OS: --
• python version: --
• is conda or virtualenv used?: --
• is running in docker?: --

need to update document(yes/no): no

Anything else we need to know: webui show wrong message