Merge pull request #284 from xiaohutai/4.2

Fix flash messages again -- See #283 [EXPERIMENTAL]

src/Submission/Handler/Redirect.php

@@ -53,27 +53,25 @@ public function __construct(RedirectableUrlMatcher $urlMatcher)
      *
      * @param FormConfig $formConfig
      * @param Entity $formData
-     * @return RedirectResponse
      */
     public function handle(FormConfig $formConfig, Entity $formData)
     {
         $response = $this->getRedirectResponse($formConfig, $formData);
         if ($response instanceof RedirectResponse) {
-            return $response->send();
+            $response->send();
         }
     }
 
     /**
      * Refresh the current page.
      *
      * @param Request $request
-     * @return RedirectResponse
      */
     public function refresh(Request $request)
     {
         $response = new RedirectResponse($request->getRequestUri());
 
-        return $response->send();
+        $response->send();
     }
 
     /**

src/Submission/Processor/Redirect.php

@@ -78,20 +78,17 @@ public function process(LifecycleEvent $lifeEvent, $eventName, EventDispatcherIn
         /** @var Handler\Redirect $handler */
         $handler = $this->handlers['redirect'];
         if ($formConfig->getFeedback()->getRedirectTarget() !== null) {
-            $response = $handler->handle($formConfig, $formData);
-            if ($response instanceof RedirectResponse) {
-                return;
-            }
+            $handler->handle($formConfig, $formData);
         }
 
         // Do a get on the page as it was probably POSTed
         $request = $this->requestStack->getCurrentRequest();
 
-        $response = $handler->refresh($request);
-        if ($response instanceof RedirectResponse) {
-            return;
-        }
+        $handler->refresh($request);
 
-        throw new HttpException(Response::HTTP_FOUND, '', null, []);
+        // Just 'exit'-ing is bad practice, but in this case it prevents an oscure error. 
+        // @see https://github.com/bolt/boltforms/pull/284 for details
+        exit;
+        // throw new HttpException(Response::HTTP_FOUND, '', null, []);
     }
 }