diff --git a/core/lib/Drupal/Core/Menu/MenuTreeStorage.php b/core/lib/Drupal/Core/Menu/MenuTreeStorage.php
index a7df424..2154492 100644
--- a/core/lib/Drupal/Core/Menu/MenuTreeStorage.php
+++ b/core/lib/Drupal/Core/Menu/MenuTreeStorage.php
@@ -285,9 +285,9 @@ protected function doSave(array $link) {
     $affected_menus = [];
 
     // Get the existing definition if it exists. This does not use
-    // self::loadFull() because we want to compare with $link after calling
-    // self::preSave() and, therefore, we need to avoid unserialization of
-    // certain fields.
+    // self::loadFull() to avoid the unserialization of fields with 'serialize'
+    // equal to TRUE as defined in self::schemaDefinition(). The makes $original
+    // easier to compare with the return value of self::preSave().
     $query = $this->connection->select($this->table, $this->options);
     $query->fields($this->table);
     $query->condition('id', $link['id']);