diff --git a/core/includes/menu.inc b/core/includes/menu.inc
index a8a30b6..a9b7d5f 100644
--- a/core/includes/menu.inc
+++ b/core/includes/menu.inc
@@ -2607,6 +2607,9 @@ function menu_router_rebuild() {
  *   (optional) Save the new router to the database. Defaults to FALSE.
  */
 function menu_router_build($save = FALSE) {
+  // Ensure that all configuration used to build the menu items are loaded
+  // without overrides.
+  config_context_enter('config.context.free');
   // We need to manually call each module so that we can know which module
   // a given item came from.
   $callbacks = array();
@@ -2621,6 +2624,8 @@ function menu_router_build($save = FALSE) {
   }
   // Alter the menu as defined in modules, keys are like user/%user.
   drupal_alter('menu', $callbacks);
+  // Return to the original context before menu building.
+  config_context_leave();
   foreach ($callbacks as $path => $router_item) {
     // If the menu item is a default local task and incorrectly references a
     // route, remove it.
diff --git a/core/modules/system/lib/Drupal/system/Tests/Menu/MenuRouterRebuildTest.php b/core/modules/system/lib/Drupal/system/Tests/Menu/MenuRouterRebuildTest.php
new file mode 100644
index 0000000..a400770
--- /dev/null
+++ b/core/modules/system/lib/Drupal/system/Tests/Menu/MenuRouterRebuildTest.php
@@ -0,0 +1,54 @@
+<?php
+
+/**
+ * @file
+ * Definition of Drupal\system\Tests\Menu\MenuRouterRebuildTest.
+ */
+
+namespace Drupal\system\Tests\Menu;
+
+use Drupal\simpletest\WebTestBase;
+use Drupal\Core\Language\Language;
+
+/**
+ * Tests menu_router_rebuild().
+ */
+class MenuRouterRebuildTest extends WebTestBase {
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = array('locale', 'menu_test');
+
+  public static function getInfo() {
+    return array(
+      'name' => 'Menu router rebuild',
+      'description' => 'Tests menu_router_rebuild().',
+      'group' => 'Menu',
+    );
+  }
+
+  function setUp() {
+    // Enable dummy module that implements hook_menu.
+    parent::setUp();
+
+    $language = new Language(array('id' => 'nl'));
+    language_save($language);
+  }
+
+  /**
+   * Tests the context in menu router rebuild.
+   */
+  public function testMenuRouterRebuildContext() {
+    // Enter a language context before rebuilding the menu router tables.
+    $language_context = config_context_enter('Drupal\Core\Config\Context\LanguageConfigContext');
+    $language_context->setLanguage(language_load('nl'));
+    menu_router_rebuild();
+
+    // Check that the language context was not used for building the menu item.
+    $this->assertTrue(menu_get_item('menu-test/context')['title'] == 'English', 'The free context is used when rebuilding menu router items.');
+  }
+
+}
diff --git a/core/modules/system/tests/modules/menu_test/config/locale.config.nl.menu_test.menu_item.yml b/core/modules/system/tests/modules/menu_test/config/locale.config.nl.menu_test.menu_item.yml
new file mode 100644
index 0000000..a845667
--- /dev/null
+++ b/core/modules/system/tests/modules/menu_test/config/locale.config.nl.menu_test.menu_item.yml
@@ -0,0 +1 @@
+title: Dutch
diff --git a/core/modules/system/tests/modules/menu_test/config/menu_test.menu_item.yml b/core/modules/system/tests/modules/menu_test/config/menu_test.menu_item.yml
new file mode 100644
index 0000000..ad3ab76
--- /dev/null
+++ b/core/modules/system/tests/modules/menu_test/config/menu_test.menu_item.yml
@@ -0,0 +1 @@
+title: English
diff --git a/core/modules/system/tests/modules/menu_test/menu_test.module b/core/modules/system/tests/modules/menu_test/menu_test.module
index ab2ef30..903d756 100644
--- a/core/modules/system/tests/modules/menu_test/menu_test.module
+++ b/core/modules/system/tests/modules/menu_test/menu_test.module
@@ -293,6 +293,11 @@ function menu_test_menu() {
     'type' => MENU_LOCAL_TASK,
   );
 
+  $items['menu-test/context'] = array(
+    'title' => \Drupal::config('menu_test.menu_item')->get('title'),
+    'route_name' => 'menu_test.context',
+  );
+
   return $items;
 }
 
diff --git a/core/modules/system/tests/modules/menu_test/menu_test.routing.yml b/core/modules/system/tests/modules/menu_test/menu_test.routing.yml
index 5ab1a94..cc333da 100644
--- a/core/modules/system/tests/modules/menu_test/menu_test.routing.yml
+++ b/core/modules/system/tests/modules/menu_test/menu_test.routing.yml
@@ -543,3 +543,10 @@ menu_test.title_test_case4:
     _content: '\Drupal\menu_test\Controller\MenuTestController::menuTestCallback'
   requirements:
     _access: 'TRUE'
+
+menu_test.context:
+  path: '/menu-test/context'
+  defaults:
+    _content: '\Drupal\menu_test\Controller\MenuTestController::menuTestCallback'
+  requirements:
+    _access: 'TRUE'