Relating to the link in my last comment, the email at which it points appears to be from a GNOME bugzilla report - https://bugzilla.gnome.org/show_bug.cgi?id=689162 - regarding the issue, but that seems to be marked as a duplicate of https://bugzilla.gnome.org/show_bug.cgi?id=662728 which appears to have been closed with the conclusion that the root cause seems to be "some misbehaviour" in overlay-scrollbar.
** Bug watch added: GNOME Bug Tracker #689162 https://bugzilla.gnome.org/show_bug.cgi?id=689162 ** Bug watch added: GNOME Bug Tracker #662728 https://bugzilla.gnome.org/show_bug.cgi?id=662728 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1011446 Title: UML drawing tools' comment fields are too small to be usable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dia/+bug/1011446/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs