Hidden filters in a collapsible details element still display the summary

I ran into this exact problem. I'm upgrading all my facets blocks to native exposed filters in facets 3.0. The plan there is to lean heavily on this excellent configurable_views_filter_block module. I'm wanting to use collapsible bef filters and experienced the same thing in the IS.

I left a couple comments in the MR. There are a couple of if conditions that seem a bit off.

That said, the patch works for me and I'm going to use it. (Thanks, @mlncn!)

The concerns I have with the if conditions aren't going to affect my site. I do think the fix would be more robust if the conditions were modified slightly per my comments though.