comparison core/lib/Drupal/Core/Utility/ThemeRegistry.php @ 14:1fec387a4317

Update Drupal core to 8.5.2 via Composer

   public function has($key) {
     // Since the theme registry allows for theme hooks to be requested that
     // are not registered, just check the existence of the key in the registry.
     // Use array_key_exists() here since a NULL value indicates that the theme
     // hook exists but has not yet been requested.
-    return array_key_exists($key, $this->storage);
+    return isset($this->storage[$key]) || array_key_exists($key, $this->storage);
   }
 
   /**
    * {@inheritdoc}
    */