Issue #2306611 by rbayliss: Fixed Field weights are not respected on render.

core/lib/Drupal/Core/Entity/EntityViewBuilder.php

@@ -275,7 +275,7 @@ class EntityViewBuilder extends EntityControllerBase implements EntityController
         //   taken care of in EntityViewDisplay::buildMultiple().
         foreach ($display->getComponents() as $name => $options) {
           if (isset($build_list[$key][$name])) {
-            $build_list[$key]['#weight'] = $options['weight'];
+            $build_list[$key][$name]['#weight'] = $options['weight'];
           }
         }
 

core/modules/system/src/Tests/Entity/EntityViewBuilderTest.php

@@ -153,6 +153,24 @@ class EntityViewBuilderTest extends EntityUnitTestBase {
     $this->assertTrue(isset($build['#cache']) && array_keys($build['#cache']) == array('tags'), 'An entity type can opt out of render caching regardless of view mode configuration, but always has cache tags set.');
   }
 
+  /**
+   * Tests weighting of display components.
+   */
+  public function testEntityViewBuilderWeight() {
+    // Set a weight for the label component.
+    entity_get_display('entity_test', 'entity_test', 'full')
+      ->setComponent('label', array('weight' => 20))
+      ->save();
+
+    // Create and build a test entity.
+    $entity_test = $this->createTestEntity('entity_test');
+    $view =  $this->container->get('entity.manager')->getViewBuilder('entity_test')->view($entity_test, 'full');
+    drupal_render($view);
+
+    // Check that the weight is respected.
+    $this->assertEqual($view['label']['#weight'], 20, 'The weight of a display component is respected.');
+  }
+
   /**
    * Creates an entity for testing.
    *