I wanted to reorganize my goals yesterday and met strange problem.
I found out unnecessary project in my goal and wanted to unbind it. But I didn't find possibility how can I do it?
There is list of goals in right button click menu, but there are no 'unset' or 'none' options in the goal view window.
On my iOS version I can unset goal for the project.

Can you fix this issue?

I use OS-X Maveriks