Double-clicking a score in Start Centre can open multiple scores

I'm running Ubuntu 14.10

Having opened the Start Centre (either by starting MuseScore, or from the View menu afterwards), single-clicking a score opens just that score (as expected), but double-clicking a score opens both that score and **sometimes** the one next to it too.

This doesn't always happen. I'm not sure what other factors influence it (if any), possibly either score's placement within the "Open Recent" list?

GIT commit: 0ba6a8b