Giscus getting discussions mistakely

[yxzlwz]

First, I opened the index page, and get these requests (Giscus request a discussion for index)

After that I click and view an article, it still requested discussion with keyword index:

Then I go back to index page by click the upper left corner, Giscus requested discussion for the article page:

Please help to fix it! It really matters as now it is showing wrong discussion for articles - in fact, all articles are showing the same!

[recoluan]

@wstee