OO-4363: don't overwrite hour and minute if date chooser is disabled

src/main/java/org/olat/core/gui/components/form/flexible/impl/elements/JSDateChooser.java

@@ -149,6 +149,7 @@ public class JSDateChooser extends TextElementImpl implements DateChooser {
 	@Override
 	public void evalFormRequest(UserRequest ureq) {
 		super.evalFormRequest(ureq);
+		if(!isEnabled()) return;
 		
 		try {
 			String receiverId = component.getFormDispatchId();