fix(serializer): no mapping cache in debug mode (#5777)

Author: soyuka

src/Symfony/Bundle/DependencyInjection/ApiPlatformExtension.php

@@ -205,6 +205,10 @@ private function registerCommonConfiguration(ContainerBuilder $container, array
         }
         $container->setParameter('api_platform.asset_package', $config['asset_package']);
         $container->setParameter('api_platform.defaults', $this->normalizeDefaults($config['defaults'] ?? []));
+
+        if ($container->getParameter('kernel.debug')) {
+            $container->removeDefinition('api_platform.serializer.mapping.cache_class_metadata_factory');
+        }
     }
 
     /**

tests/Symfony/Bundle/DependencyInjection/ApiPlatformExtensionTest.php

@@ -1259,4 +1259,13 @@ public function testLegacyOpenApiApiKeysConfiguration(): void
 
         (new ApiPlatformExtension())->load($config, $this->container);
     }
+
+    public function testHasClassMetadataCache(): void
+    {
+        $config = self::DEFAULT_CONFIG;
+        $this->container->setParameter('kernel.debug', true);
+        (new ApiPlatformExtension())->load($config, $this->container);
+
+        $this->assertFalse($this->container->hasDefinition('api_platform.serializer.mapping.cache_class_metadata_factory'));
+    }
 }