The bug I filed upstream has been marked as a duplicate of this one: https://bugzilla.gnome.org/show_bug.cgi?id=761124 And the good news is that the bug has already been fixed upstream in the unstable development version.
** Bug watch added: GNOME Bug Tracker #761124 https://bugzilla.gnome.org/show_bug.cgi?id=761124 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1539289 Title: Divisory line at the top partly disappears in certain cases To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-gnome/+bug/1539289/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
