fix footprint combo

GUI/View/Device/FootprintForm.cpp

@@ -36,7 +36,7 @@ FootprintForm::FootprintForm(QWidget* parent, SourceItem* item)
             updateFootprintWidgets();
             emit dataChanged();
         },
-        false);
+        true);
     m_formLayout->addRow("Type:", typeCombo);
 
     updateFootprintWidgets();