Never mind. There's an additional section that needs to be updated for boolean or List type filters. It's the same change as indicated above by Joseph123123, but it's on line 136. 

Thanks for this! I'm also Dawn and Search & Discovery App. Have you had any issues with filters where "open" doesn't default them to expanded. I removed forloop.index == 1, so that when vertical all filters should default expanded. I verified in the ...