final Component component = getComponentFactoryRegistry().addOrReplaceComponent(container, ComponentType.SCALAR_NAME_AND_VALUE, argumentModel);
final ScalarPanelAbstract paramPanel = component instanceof ScalarPanelAbstract ? (ScalarPanelAbstract) component : null;
paramPanels.add(paramPanel);
if(paramPanel != null) {
paramPanel.setOutputMarkupId(true);
paramPanel.notifyOnChange(this);
}
if(!renderedFirstField) {
component.add(new CssClassAppender("first-field"));
renderedFirstField = true;