+ // TODO: Qt5: Replace Qt::XButton1 by Qt::BackButton and Qt::XButton2 by Qt::ForwardButton
+ if (event->buttons() & (Qt::XButton1 | Qt::XButton2)) {
+ // Do not select items when clicking the back/forward buttons, see
+ // https://bugs.kde.org/show_bug.cgi?id=327412.
+ return true;
+ }
+