Any way to show posts in the top forum but not subforums?

So was the intent of this “fix” to default to “none”, still keep “all” as a drop down option, but make it completely non-functional? I select “all” and it just stays as “none”.

So now I get to manually open every sub-forum.

(I only tried 5 forums - I assume it’s true for all. Even when I select a sub-forum and then try picking all, it goes back to none)