diff --git a/core/lib/Drupal/Core/Plugin/DefaultPluginManager.php b/core/lib/Drupal/Core/Plugin/DefaultPluginManager.php
index c9cd2e3..e9c4ce9 100644
--- a/core/lib/Drupal/Core/Plugin/DefaultPluginManager.php
+++ b/core/lib/Drupal/Core/Plugin/DefaultPluginManager.php
@@ -173,7 +173,6 @@ public function getDefinition($plugin_id) {
     if (isset($this->definitions[$plugin_id])) {
       return $this->definitions[$plugin_id];
     }
-    return array();
   }
 
   /**
diff --git a/core/modules/datetime/lib/Drupal/datetime/Plugin/Field/FieldType/DateTimeItem.php b/core/modules/datetime/lib/Drupal/datetime/Plugin/Field/FieldType/DateTimeItem.php
index 6119730..7fbf9a8 100644
--- a/core/modules/datetime/lib/Drupal/datetime/Plugin/Field/FieldType/DateTimeItem.php
+++ b/core/modules/datetime/lib/Drupal/datetime/Plugin/Field/FieldType/DateTimeItem.php
@@ -46,7 +46,7 @@ public static function propertyDefinitions(FieldDefinitionInterface $field_defin
     $properties['value'] = DataDefinition::create('datetime_iso8601')
       ->setLabel(t('Date value'));
 
-    $properties['date'] = DataDefinition::create('datetime_computed')
+    $properties['date'] = DataDefinition::create('any')
       ->setLabel(t('Computed date'))
       ->setDescription(t('The computed DateTime object.'))
       ->setComputed(TRUE)
diff --git a/sites/default/default.settings.php b/sites/default/default.settings.php
old mode 100644
new mode 100755