The filter button of the intermediate result cannot be clicked

[rabbit008]

Short summary about the issue/question:
When I was screening the intermediate results, I found that occasionally the button could not be clicked.

Brief what process you are following:
Click the filter button, without any data, click confirm, will prompt for input data request, close the filter, and then open, there will be a bug that the confirm button cannot be clicked.

as above
How to reproduce it:
Refresh the page

nni Environment:

• nni version:0.9.1906260743
• nni mode(local|pai|remote):local
• OS:Win10
• python version:3.7
• is conda or virtualenv used?:
• is running in docker?:no

need to update document(yes/no):

Anything else we need to know:

[lvybriage]

It was fixed in pr #1295. @rabbit008