Comment 42 for bug 963736

Unfortunately, the fixes are not yet released. They can be accessed in latest git oxygen-gtk. For the record, here're the relevant commits:
http://commits.kde.org/oxygen-gtk/51b662b0cd86fd7a960cc2f0c436441d64b2dd44 for oxygen-gtk3
http://commits.kde.org/oxygen-gtk/a515ab451f54cbc930d0a09d250669255dd8a741 for oxygen-gtk2