commit a9bf66fa7fd95030f076af233c3e65d51eb2944a
Author: Erik Stielstra <info@erikstielstra.nl>
Date:   Fri Feb 14 16:34:24 2014 +0100

    #12

diff --git a/core/modules/config/lib/Drupal/config/Tests/ConfigImportUITest.php b/core/modules/config/lib/Drupal/config/Tests/ConfigImportUITest.php
index 72cc853..24be35e 100644
--- a/core/modules/config/lib/Drupal/config/Tests/ConfigImportUITest.php
+++ b/core/modules/config/lib/Drupal/config/Tests/ConfigImportUITest.php
@@ -109,7 +109,7 @@ function testImportLock() {
     $this->assertText(t('Another request may be synchronizing configuration already.'));
 
     // Release the lock, just to keep testing sane.
-    $this->container->get('lock')->release($config_importer_lock);
+    $this->container->get('lock')->release($config_importer::LOCK_ID);
 
     // Verify site name has not changed.
     $this->assertNotEqual($new_site_name, \Drupal::config('system.site')->get('name'));