When clicking on an index widget in an itemview that takes focus while another indexwidget has focus then it will not pass the focus on

#include <QtGui>

class ListWidget : public QTreeWidget
{
public:
    ListWidget()
    {
        setAcceptDrops(true);
        setDragEnabled(true);
        QTreeWidgetItem *tmp2 = new QTreeWidgetItem(this);
        tmp2->setText(0, "A QTreeWidgetItem");
        addTopLevelItem(tmp2);
        QTreeWidgetItem *widgetContainer = new QTreeWidgetItem(this);
        addTopLevelItem(widgetContainer);
        QLabel *label = new QLabel("<a href=#>this is a link</a>", this);
        label->setFocusPolicy(Qt::ClickFocus);
        setItemWidget(widgetContainer, 0, label);
        QTreeWidgetItem *tmp3 = new QTreeWidgetItem(this);
        tmp3->setText(0, "A QTreeWidgetItem");
        addTopLevelItem(tmp3);
        QTreeWidgetItem *widgetContainer2 = new QTreeWidgetItem(this);
        addTopLevelItem(widgetContainer2);
        QLabel *label2 = new QLabel("<a href=#>this is another link</a>", this);
        label2->setFocusPolicy(Qt::ClickFocus);
        setItemWidget (widgetContainer2, 0, label2);
    }
};

int main(int argc, char **argv)
{
    QApplication app(argc, argv);
    QApplication::setAttribute(Qt::AA_NativeWindows);
    ListWidget box;
    box.setFocus();
    box.show();
    return app.exec();
}