Issue #3256906 avoid translation access checks

Closes #3256906

core/modules/content_translation/content_translation.module

@@ -439,19 +439,20 @@ function content_translation_language_fallback_candidates_entity_view_alter(&$ca
     /** @var \Drupal\content_translation\ContentTranslationHandlerInterface $handler */
     $handler = \Drupal::entityTypeManager()->getHandler($entity->getEntityTypeId(), 'translation');
     foreach ($entity->getTranslationLanguages() as $langcode => $language) {
-      $metadata = $manager->getTranslationMetadata($entity->getTranslation($langcode));
-      if (!$metadata->isPublished()) {
-        $access = $handler->getTranslationAccess($entity, 'update');
-        $entity->addCacheableDependency($access);
-        if (!$access->isAllowed()) {
-
-          // If the user has no translation update access, also check view
-          // access for that translation, to allow other modules to allow access
-          // to unpublished translations.
-          $access = $entity->getTranslation($langcode)->access('view', NULL, TRUE);
+      if (in_array($langcode, $candidates)) {
+        $metadata = $manager->getTranslationMetadata($entity->getTranslation($langcode));
+        if (!$metadata->isPublished()) {
+          $access = $handler->getTranslationAccess($entity, 'update');
           $entity->addCacheableDependency($access);
           if (!$access->isAllowed()) {
-            unset($candidates[$langcode]);
+            // If the user has no translation update access, also check view
+            // access for that translation, to allow other modules to allow access
+            // to unpublished translations.
+            $access = $entity->getTranslation($langcode)->access('view', NULL, TRUE);
+            $entity->addCacheableDependency($access);
+            if (!$access->isAllowed()) {
+              unset($candidates[$langcode]);
+            }
           }
         }
       }