Changed sizeHints(), sizePolicy() and used updateGeometry() to properly size the tabBar

src/DockWidgetTab.cpp

@@ -451,6 +451,7 @@ void CDockWidgetTab::setActiveTab(bool active)
 	d->TitleLabel->style()->unpolish(d->TitleLabel);
 	d->TitleLabel->style()->polish(d->TitleLabel);
 	update();
+	updateGeometry();
 
 	emit activeTabChanged();
 }