symfony · fabpot · Apr 1, 2022 · Apr 1, 2022
@@ -18,9 +18,11 @@
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
 use Symfony\Component\DependencyInjection\Reference;
+use Symfony\Component\Form\AbstractRendererEngine;
 use Symfony\Component\HttpKernel\DependencyInjection\Extension;
 use Symfony\Component\Mailer\Mailer;
 use Symfony\Component\Translation\Translator;
+use Symfony\Contracts\Service\ResetInterface;
 use Twig\Extension\ExtensionInterface;
 use Twig\Extension\RuntimeExtensionInterface;
 use Twig\Loader\LoaderInterface;
@@ -40,6 +42,12 @@ public function load(array $configs, ContainerBuilder $container)

        if (class_exists(\Symfony\Component\Form\Form::class)) {
            $loader->load('form.xml');
+
+            if (is_subclass_of(AbstractRendererEngine::class, ResetInterface::class)) {
+                $container->getDefinition('twig.form.engine')->addTag('kernel.reset', [
+                    'method' => 'reset',
+                ]);
+            }
        }

        if (interface_exists(\Symfony\Component\Templating\EngineInterface::class)) {

@@ -11,12 +11,14 @@

 namespace Symfony\Component\Form;

+use Symfony\Contracts\Service\ResetInterface;
+
 /**
 * Default implementation of {@link FormRendererEngineInterface}.
 *
 * @author Bernhard Schussek <bschussek@gmail.com>
 */
-abstract class AbstractRendererEngine implements FormRendererEngineInterface
+abstract class AbstractRendererEngine implements FormRendererEngineInterface, ResetInterface
 {
    /**
     * The variable in {@link FormView} used as cache key.
@@ -197,4 +199,12 @@ private function loadResourceForBlockNameHierarchy(string $cacheKey, FormView $v

        return false;
    }
+
+    public function reset(): void
+    {
+        $this->themes = [];
+        $this->useDefaultThemes = [];
+        $this->resources = [];
+        $this->resourceHierarchyLevels = [];
+    }
 }