Correctly disable menubar layout if loading a layout > 5

src/layoutmanagement.cpp

@@ -195,7 +195,9 @@ void LayoutManagement::slotLoadLayout(QAction *action)
             }
         }
         if (!buttonFound && m_containerGrp->checkedButton()) {
+            m_containerGrp->setExclusive(false);
             m_containerGrp->checkedButton()->setChecked(false);
+            m_containerGrp->setExclusive(true);
         }
     }
 }