I have a board that combines 3 different Projects. I'm using Fix Version to filter issues down to the ones I want on my board. I'd like to be able to assign the same Fix Version (Release) to issues from all 3 Projects, but it looks like I can't do that. Instead, I've now got all of the Versions from all 3 Projects showing up on my board, even though I've filtered out all issues from some of the Versions. How can I get the (empty) versions off of my board?