rules are ok

src/js/jflow-wfform.js

@@ -327,6 +327,8 @@ jQuery.validator.addMethod("exclude_required", function(value, element, options)
 						forceIframeTransport: true,
 						add: function (e, data) {
 							$("#"+iid).data("data2upload", data);
+							// so the validation of the form is done
+							$("#"+iid).focusout();
 				        }
 					});
 		    	});