diff --git a/core/lib/Drupal/Core/Entity/FieldableDatabaseStorageController.php b/core/lib/Drupal/Core/Entity/FieldableDatabaseStorageController.php
index b62926b..828f58d 100644
--- a/core/lib/Drupal/Core/Entity/FieldableDatabaseStorageController.php
+++ b/core/lib/Drupal/Core/Entity/FieldableDatabaseStorageController.php
@@ -214,11 +214,12 @@ public function loadMultiple(array $ids = NULL) {
    * @param array $ids
    *   List of entity IDs to load or NULL to load all.
    *
-   * @param \Drupal\Core\Entity\ContentEntityInterface[]
+   * @return \Drupal\Core\Entity\ContentEntityInterface[]
    *   Array of loaded entities.
    */
   protected function doLoadMultiple(array $ids = NULL) {
-    if (is_array($ids) && empty($ids)) {
+    // There is nothing to do if $ids is an empty array.
+    if ($ids === array()) {
       return array();
     }