diff --git a/core/lib/Drupal/Core/Extension/ModuleHandler.php b/core/lib/Drupal/Core/Extension/ModuleHandler.php
index 2646ad3..62cdd06 100644
--- a/core/lib/Drupal/Core/Extension/ModuleHandler.php
+++ b/core/lib/Drupal/Core/Extension/ModuleHandler.php
@@ -651,18 +651,21 @@ public function install(array $module_list, $enable_dependencies = TRUE) {
         return TRUE;
       }
 
-      // Add dependencies to the list. The new modules will be processed as
-      // the while loop continues.
-      while (list($module) = each($module_list)) {
-        foreach (array_keys($module_data[$module]->requires) as $dependency) {
-          if (!isset($module_data[$dependency])) {
-            // The dependency does not exist.
-            return FALSE;
-          }
+      // Conditionally add the dependencies to the list of modules.
+      if ($enable_dependencies) {
+        // Add dependencies to the list. The new modules will be processed as
+        // the while loop continues.
+        while (list($module) = each($module_list)) {
+          foreach (array_keys($module_data[$module]->requires) as $dependency) {
+            if (!isset($module_data[$dependency])) {
+              // The dependency does not exist.
+              return FALSE;
+            }
 
-          // Skip already installed modules.
-          if (!isset($module_list[$dependency]) && !isset($installed_modules[$dependency])) {
-            $module_list[$dependency] = $dependency;
+            // Skip already installed modules.
+            if (!isset($module_list[$dependency]) && !isset($installed_modules[$dependency])) {
+              $module_list[$dependency] = $dependency;
+            }
           }
         }
       }
diff --git a/core/modules/user/user.info.yml b/core/modules/user/user.info.yml
index 0c7b4cf..9800f7f 100644
--- a/core/modules/user/user.info.yml
+++ b/core/modules/user/user.info.yml
@@ -6,5 +6,7 @@ version: VERSION
 core: 8.x
 required: true
 configure: user.admin_index
+# @todo Remove this field dependency
+#   @see https://drupal.org/node/2116363
 dependencies:
- - field
+  - field
diff --git a/core/modules/user/user.install b/core/modules/user/user.install
index a84542f..090b235 100644
--- a/core/modules/user/user.install
+++ b/core/modules/user/user.install
@@ -221,6 +221,8 @@ function user_schema() {
  */
 function user_install() {
   $storage = \Drupal::entityManager()->getStorage('user');
+  // @todo Rely on the default value for langcode in
+  //   https://drupal.org/node/1966436
   $langcode = \Drupal::languageManager()->getDefaultLanguage()->id;
   // Insert a row for the anonymous user.
   $storage