When you click on anything that lets you select other content as the target (relationship, containing topic, that sort of thing) there is no longer a way to collapse your categories. You have to see
every topic in your realm!
That's some serious lost functionality.
I actually managed to collapse the list with <CTRL -> once...but then I couldn't expand anything it again except by completely closing out the selection process. So right now you see all of your content or none of it.
Am I the only one seeing this?