diff -u b/core/modules/system/lib/Drupal/system/Plugin/Block/SystemMenuBlock.php b/core/modules/system/lib/Drupal/system/Plugin/Block/SystemMenuBlock.php
--- b/core/modules/system/lib/Drupal/system/Plugin/Block/SystemMenuBlock.php
+++ b/core/modules/system/lib/Drupal/system/Plugin/Block/SystemMenuBlock.php
@@ -49,6 +49,7 @@
    * {@inheritdoc}
    */
   public function getOperationLinks() {
+    // @todo Clean up when http://drupal.org/node/1874498 lands.
     list(, $menu) = explode(':', $this->getPluginId());
 
     $links = array();
only in patch2:
unchanged:
--- a/core/lib/Drupal/Core/Entity/EntityInterface.php
+++ b/core/lib/Drupal/Core/Entity/EntityInterface.php
@@ -245,4 +245,11 @@ public function referencedEntities();
    */
   public function changed();
 
+  /**
+   * Returns a list of operation links available for this entity.
+   *
+   * @return array
+   */
+  public function getOperationLinks();
+
 }