Here's a link to a duplicate bug report stating that it does still happen on DAPPER:
https://launchpad.net/distros/ubuntu/+source/notification- daemon/+bug/39996 -- text cropped/clipped in notification bubble https://launchpad.net/bugs/36115 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
