I have a bug with Tomboy Notes application on Ubuntu 14.04 LTS.
Whenever I boot my system, clicking the original panel, the icon doubles. And every word that I type and delete in the search bar, the icon also doubles.
Another problem, when you click to create new note it appears an error of "Broken" pipe. When I click the icon again, I see that the note was created empty, with current date and time.
Look at the video.