diff --git a/core/includes/form.inc b/core/includes/form.inc
index 5c0c5cf..9868e60 100644
--- a/core/includes/form.inc
+++ b/core/includes/form.inc
@@ -991,6 +991,12 @@ function theme_fieldset($variables) {
  */
 function theme_details($variables) {
   $element = $variables['element'];
+
+  if (empty($element['#children'])) {
+    // Skip displaying the details element if there are no children.
+    return '';
+  }
+
   element_set_attributes($element, array('id'));
   _form_set_attributes($element, array('form-wrapper'));
 
@@ -1963,9 +1969,6 @@ function form_process_group(&$element, &$form_state) {
     $form_state['groups'][$group][] = &$element;
   }
 
-  // Contains form element summary functionalities.
-  $element['#attached']['library'][] = array('system', 'drupal.form');
-
   return $element;
 }
 
@@ -2032,6 +2035,9 @@ function form_pre_render_group($element) {
   }
 
   if (isset($element['#group'])) {
+    // Contains form element summary functionalities.
+    $element['#attached']['library'][] = array('system', 'drupal.form');
+
     $group = $element['#group'];
     // If this element belongs to a group, but the group-holding element does
     // not exist, we need to render it (at its original location).
diff --git a/core/modules/datetime/datetime.module b/core/modules/datetime/datetime.module
index ccf1a0c..27b52e4 100644
--- a/core/modules/datetime/datetime.module
+++ b/core/modules/datetime/datetime.module
@@ -46,7 +46,8 @@ function datetime_element_info() {
   $types['datetime'] = array(
     '#input' => TRUE,
     '#element_validate' => array('datetime_datetime_validate'),
-    '#process' => array('datetime_datetime_form_process'),
+    '#process' => array('datetime_datetime_form_process', 'form_process_group'),
+    '#pre_render' => array('form_pre_render_group'),
     '#theme' => 'datetime_form',
     '#theme_wrappers' => array('datetime_wrapper'),
     '#date_date_format' => $date_format,
@@ -991,11 +992,11 @@ function datetime_form_node_form_alter(&$form, &$form_state, $form_id) {
   $format_type = datetime_default_format_type();
 
   // Alter the 'Authored on' date to use datetime.
-  $form['author']['date']['#type'] = 'datetime';
+  $form['created']['#type'] = 'datetime';
   $date_format = entity_load('date_format', 'html_date')->getPattern($format_type);
   $time_format = entity_load('date_format', 'html_time')->getPattern($format_type);
-  $form['author']['date']['#description'] = t('Format: %format. Leave blank to use the time of form submission.', array('%format' => datetime_format_example($date_format . ' ' . $time_format)));
-  unset($form['author']['date']['#maxlength']);
+  $form['created']['#description'] = t('Format: %format. Leave blank to use the time of form submission.', array('%format' => datetime_format_example($date_format . ' ' . $time_format)));
+  unset($form['created']['#maxlength']);
 }
 
 /**
diff --git a/core/modules/forum/lib/Drupal/forum/Tests/ForumBlockTest.php b/core/modules/forum/lib/Drupal/forum/Tests/ForumBlockTest.php
index ab8feb9..3799288 100644
--- a/core/modules/forum/lib/Drupal/forum/Tests/ForumBlockTest.php
+++ b/core/modules/forum/lib/Drupal/forum/Tests/ForumBlockTest.php
@@ -174,8 +174,8 @@ protected function createForumTopics($count = 5) {
         'body[0][value]' => $body,
         // Forum posts are ordered by timestamp, so force a unique timestamp by
         // adding the index.
-        'date[date]' => $date->format('Y-m-d'),
-        'date[time]' => $date->format('H:i:s'),
+        'created[date]' => $date->format('Y-m-d'),
+        'created[time]' => $date->format('H:i:s'),
       );
 
       // Create the forum topic, preselecting the forum ID via a URL parameter.
diff --git a/core/modules/node/lib/Drupal/node/NodeFormController.php b/core/modules/node/lib/Drupal/node/NodeFormController.php
index d6fda36..8dd4f82 100644
--- a/core/modules/node/lib/Drupal/node/NodeFormController.php
+++ b/core/modules/node/lib/Drupal/node/NodeFormController.php
@@ -34,11 +34,6 @@ protected function prepareEntity() {
     // Set up default values, if required.
     $type = entity_load('node_type', $node->bundle());
     $this->settings = $type->getModuleSettings('node');
-    $this->settings += array(
-      'options' => array('status', 'promote'),
-      'preview' => DRUPAL_OPTIONAL,
-      'submitted' => TRUE,
-    );
 
     // If this is a new node, fill in the default values.
     if ($node->isNew()) {
@@ -48,8 +43,6 @@ protected function prepareEntity() {
           $node->$key = (int) !empty($this->settings['options'][$key]);
         }
       }
-      $node->setOwnerId(\Drupal::currentUser()->id());
-      $node->setCreatedTime(REQUEST_TIME);
     }
     else {
       $node->date = format_date($node->getCreatedTime(), 'custom', 'Y-m-d H:i:s O');
@@ -87,15 +80,6 @@ public function form(array $form, array &$form_state) {
     // names.
     $form['#attributes']['class'][0] = drupal_html_class('node-' . $node->getType() . '-form');
 
-    // Basic node information.
-    // These elements are just values so they are not even sent to the client.
-    foreach (array('nid', 'vid', 'uid', 'created', 'type') as $key) {
-      $form[$key] = array(
-        '#type' => 'value',
-        '#value' => isset($node->$key) ? $node->$key : NULL,
-      );
-    }
-
     // Changed must be sent to the client, for later overwrite error checking.
     $form['changed'] = array(
       '#type' => 'hidden',
@@ -132,17 +116,17 @@ public function form(array $form, array &$form_state) {
         'js' => array(drupal_get_path('module', 'node') . '/node.js'),
       ),
       '#weight' => 20,
-      '#access' => $node->isNewRevision() || user_access('administer nodes'),
     );
 
-    $form['revision_information']['revision']['revision'] = array(
+    $form['revision'] = array(
       '#type' => 'checkbox',
       '#title' => t('Create new revision'),
       '#default_value' => $node->isNewRevision(),
-      '#access' => user_access('administer nodes'),
+      '#access' => $node->isNewRevision() || user_access('administer nodes'),
+      '#group' => 'revision_information',
     );
 
-    $form['revision_information']['revision']['log'] = array(
+    $form['log'] = array(
       '#type' => 'textarea',
       '#title' => t('Revision log message'),
       '#rows' => 4,
@@ -153,6 +137,8 @@ public function form(array $form, array &$form_state) {
           ':input[name="revision"]' => array('checked' => TRUE),
         ),
       ),
+      '#group' => 'revision_information',
+      '#access' => $node->isNewRevision() || user_access('administer nodes'),
     );
 
     // Node author information for administrators.
@@ -177,7 +163,7 @@ public function form(array $form, array &$form_state) {
       '#weight' => 90,
     );
 
-    $form['author']['name'] = array(
+    $form['uid'] = array(
       '#type' => 'textfield',
       '#title' => t('Authored by'),
       '#maxlength' => 60,
@@ -185,19 +171,22 @@ public function form(array $form, array &$form_state) {
       '#default_value' => $node->getOwnerId()? $node->getOwner()->getUsername() : '',
       '#weight' => -1,
       '#description' => t('Leave blank for %anonymous.', array('%anonymous' => $user_config->get('anonymous'))),
+      '#group' => 'author',
+      '#access' => user_access('administer nodes'),
     );
-    $form['author']['date'] = array(
+    $form['created'] = array(
       '#type' => 'textfield',
       '#title' => t('Authored on'),
       '#maxlength' => 25,
       '#description' => t('Format: %time. The date format is YYYY-MM-DD and %timezone is the time zone offset from UTC. Leave blank to use the time of form submission.', array('%time' => !empty($node->date) ? date_format(date_create($node->date), 'Y-m-d H:i:s O') : format_date($node->getCreatedTime(), 'custom', 'Y-m-d H:i:s O'), '%timezone' => !empty($node->date) ? date_format(date_create($node->date), 'O') : format_date($node->getCreatedTime(), 'custom', 'O'))),
       '#default_value' => !empty($node->date) ? $node->date : '',
+      '#group' => 'author',
+      '#access' => user_access('administer nodes'),
     );
 
     // Node options for administrators.
     $form['options'] = array(
       '#type' => 'details',
-      '#access' => user_access('administer nodes'),
       '#title' => t('Promotion options'),
       '#collapsed' => TRUE,
       '#group' => 'advanced',
@@ -210,16 +199,20 @@ public function form(array $form, array &$form_state) {
       '#weight' => 95,
     );
 
-    $form['options']['promote'] = array(
+    $form['promote'] = array(
       '#type' => 'checkbox',
       '#title' => t('Promoted to front page'),
       '#default_value' => $node->isPromoted(),
+      '#group' => 'options',
+      '#access' => user_access('administer nodes'),
     );
 
-    $form['options']['sticky'] = array(
+    $form['sticky'] = array(
       '#type' => 'checkbox',
       '#title' => t('Sticky at top of lists'),
       '#default_value' => $node->isSticky(),
+      '#group' => 'options',
+      '#access' => user_access('administer nodes'),
     );
 
     return parent::form($form, $form_state, $node);
@@ -316,11 +309,11 @@ public function validate(array $form, array &$form_state) {
     }
 
     // Validate the "authored by" field.
-    if (!empty($form_state['values']['name']) && !($account = user_load_by_name($form_state['values']['name']))) {
+    if (!empty($form_state['values']['uid']) && !($account = user_load_by_name($form_state['values']['uid']))) {
       // The use of empty() is mandatory in the context of usernames
       // as the empty string denotes the anonymous user. In case we
       // are dealing with an anonymous user we set the user ID to 0.
-      $this->setFormError('name', $form_state, $this->t('The username %name does not exist.', array('%name' => $form_state['values']['name'])));
+      $this->setFormError('uid', $form_state, $this->t('The username %name does not exist.', array('%name' => $form_state['values']['uid'])));
     }
 
     // Validate the "authored on" field.
@@ -423,15 +416,15 @@ public function buildEntity(array $form, array &$form_state) {
     $entity = parent::buildEntity($form, $form_state);
     // A user might assign the node author by entering a user name in the node
     // form, which we then need to translate to a user ID.
-    if (!empty($form_state['values']['name']) && $account = user_load_by_name($form_state['values']['name'])) {
+    if (!empty($form_state['values']['uid']) && $account = user_load_by_name($form_state['values']['uid'])) {
       $entity->setOwnerId($account->id());
     }
     else {
       $entity->setOwnerId(0);
     }
 
-    if (!empty($form_state['values']['date']) && $form_state['values']['date'] instanceOf DrupalDateTime) {
-      $entity->setCreatedTime($form_state['values']['date']->getTimestamp());
+    if (!empty($form_state['values']['created']) && $form_state['values']['created'] instanceOf DrupalDateTime) {
+      $entity->setCreatedTime($form_state['values']['created']->getTimestamp());
     }
     else {
       $entity->setCreatedTime(REQUEST_TIME);
diff --git a/core/modules/node/lib/Drupal/node/NodeTranslationController.php b/core/modules/node/lib/Drupal/node/NodeTranslationController.php
index 9568aeb..e1c90d6 100644
--- a/core/modules/node/lib/Drupal/node/NodeTranslationController.php
+++ b/core/modules/node/lib/Drupal/node/NodeTranslationController.php
@@ -56,8 +56,10 @@ public function entityFormEntityBuild($entity_type, EntityInterface $entity, arr
       $form_controller = content_translation_form_controller($form_state);
       $translation = &$form_state['values']['content_translation'];
       $translation['status'] = $form_controller->getEntity()->isPublished();
-      $translation['name'] = $form_state['values']['name'];
-      $translation['created'] = $form_state['values']['date'];
+      // $form['content_translation']['name'] is the equivalent field
+      // for translation author uid.
+      $translation['name'] = $form_state['values']['uid'];
+      $translation['created'] = $form_state['values']['created'];
     }
     parent::entityFormEntityBuild($entity_type, $entity, $form, $form_state);
   }
diff --git a/core/modules/node/lib/Drupal/node/Tests/NodeCreationTest.php b/core/modules/node/lib/Drupal/node/Tests/NodeCreationTest.php
index 52dd047..c5b4514 100644
--- a/core/modules/node/lib/Drupal/node/Tests/NodeCreationTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeCreationTest.php
@@ -149,7 +149,7 @@ public function testAuthorAutocomplete() {
 
     $this->drupalGet('node/add/page');
 
-    $result = $this->xpath('//input[@id="edit-name" and contains(@data-autocomplete-path, "user/autocomplete")]');
+    $result = $this->xpath('//input[@id="edit-uid" and contains(@data-autocomplete-path, "user/autocomplete")]');
     $this->assertEqual(count($result), 0, 'No autocompletion without access user profiles.');
 
     $admin_user = $this->drupalCreateUser(array('administer nodes', 'create page content', 'access user profiles'));
@@ -157,7 +157,7 @@ public function testAuthorAutocomplete() {
 
     $this->drupalGet('node/add/page');
 
-    $result = $this->xpath('//input[@id="edit-name" and contains(@data-autocomplete-path, "user/autocomplete")]');
+    $result = $this->xpath('//input[@id="edit-uid" and contains(@data-autocomplete-path, "user/autocomplete")]');
     $this->assertEqual(count($result), 1, 'Ensure that the user does have access to the autocompletion');
   }
 
diff --git a/core/modules/node/lib/Drupal/node/Tests/NodeTranslationUITest.php b/core/modules/node/lib/Drupal/node/Tests/NodeTranslationUITest.php
index 5b7389a..0aaf8df 100644
--- a/core/modules/node/lib/Drupal/node/Tests/NodeTranslationUITest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeTranslationUITest.php
@@ -155,17 +155,17 @@ protected function doTestAuthoringInfo() {
         'created' => REQUEST_TIME - mt_rand(0, 1000),
       );
       $edit = array(
-        'name' => $user->getUsername(),
-        'date[date]' => format_date($values[$langcode]['created'], 'custom', 'Y-m-d'),
-        'date[time]' => format_date($values[$langcode]['created'], 'custom', 'H:i:s'),
+        'uid' => $user->getUsername(),
+        'created[date]' => format_date($values[$langcode]['created'], 'custom', 'Y-m-d'),
+        'created[time]' => format_date($values[$langcode]['created'], 'custom', 'H:i:s'),
       );
       $this->drupalPostForm($path, $edit, $this->getFormSubmitAction($entity), array('language' => $languages[$langcode]));
     }
 
     $entity = entity_load($this->entityType, $this->entityId, TRUE);
     foreach ($this->langcodes as $langcode) {
-      $this->assertEqual($entity->translation[$langcode]['uid'] == $values[$langcode]['uid'], 'Translation author correctly stored.');
-      $this->assertEqual($entity->translation[$langcode]['created'] == $values[$langcode]['created'], 'Translation date correctly stored.');
+      $this->assertEqual($entity->translation[$langcode]['uid'], $values[$langcode]['uid'], 'Translation author correctly stored.');
+      $this->assertEqual($entity->translation[$langcode]['created'], $values[$langcode]['created'], 'Translation date correctly stored.');
     }
   }
 
diff --git a/core/modules/node/lib/Drupal/node/Tests/PageEditTest.php b/core/modules/node/lib/Drupal/node/Tests/PageEditTest.php
index b7b0106..2361d13 100644
--- a/core/modules/node/lib/Drupal/node/Tests/PageEditTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/PageEditTest.php
@@ -114,21 +114,21 @@ function testPageAuthoredBy() {
 
     // Try to change the 'authored by' field to an invalid user name.
     $edit = array(
-      'name' => 'invalid-name',
+      'uid' => 'invalid-name',
     );
     $this->drupalPostForm('node/' . $node->id() . '/edit', $edit, t('Save and keep published'));
     $this->assertText('The username invalid-name does not exist.');
 
     // Change the authored by field to an empty string, which should assign
     // authorship to the anonymous user (uid 0).
-    $edit['name'] = '';
+    $edit['uid'] = '';
     $this->drupalPostForm('node/' . $node->id() . '/edit', $edit, t('Save and keep published'));
     $node = node_load($node->id(), TRUE);
     $this->assertIdentical($node->getOwnerId(), '0', 'Node authored by anonymous user.');
 
     // Change the authored by field to another user's name (that is not
     // logged in).
-    $edit['name'] = $this->web_user->getUsername();
+    $edit['uid'] = $this->web_user->getUsername();
     $this->drupalPostForm('node/' . $node->id() . '/edit', $edit, t('Save and keep published'));
     $node = node_load($node->id(), TRUE);
     $this->assertIdentical($node->getOwnerId(), $this->web_user->id(), 'Node authored by normal user.');
@@ -136,6 +136,6 @@ function testPageAuthoredBy() {
     // Check that normal users cannot change the authored by information.
     $this->drupalLogin($this->web_user);
     $this->drupalGet('node/' . $node->id() . '/edit');
-    $this->assertNoFieldByName('name');
+    $this->assertNoFieldByName('uid');
   }
 }
diff --git a/core/modules/system/system.module b/core/modules/system/system.module
index 941ef47..7a3a4a8 100644
--- a/core/modules/system/system.module
+++ b/core/modules/system/system.module
@@ -334,8 +334,8 @@ function system_element_info() {
     '#size' => 60,
     '#maxlength' => 128,
     '#autocomplete_route_name' => FALSE,
-    '#process' => array('form_process_autocomplete', 'ajax_process_form', 'form_process_pattern'),
-    '#pre_render' => array('form_pre_render_textfield'),
+    '#process' => array('form_process_autocomplete', 'ajax_process_form', 'form_process_pattern', 'form_process_group'),
+    '#pre_render' => array('form_pre_render_textfield', 'form_pre_render_group'),
     '#theme' => 'input__textfield',
     '#theme_wrappers' => array('form_element'),
   );
@@ -441,7 +441,8 @@ function system_element_info() {
     '#cols' => 60,
     '#rows' => 5,
     '#resizable' => 'vertical',
-    '#process' => array('ajax_process_form'),
+    '#process' => array('ajax_process_form', 'form_process_group'),
+    '#pre_render' => array('form_pre_render_group'),
     '#theme' => 'textarea',
     '#theme_wrappers' => array('form_element'),
   );
@@ -469,8 +470,8 @@ function system_element_info() {
   $types['checkbox'] = array(
     '#input' => TRUE,
     '#return_value' => 1,
-    '#process' => array('form_process_checkbox', 'ajax_process_form'),
-    '#pre_render' => array('form_pre_render_checkbox'),
+    '#process' => array('form_process_checkbox', 'ajax_process_form', 'form_process_group'),
+    '#pre_render' => array('form_pre_render_checkbox', 'form_pre_render_group'),
     '#theme' => 'input__checkbox',
     '#theme_wrappers' => array('form_element'),
     '#title_display' => 'after',
diff --git a/core/modules/taxonomy/lib/Drupal/taxonomy/Tests/LegacyTest.php b/core/modules/taxonomy/lib/Drupal/taxonomy/Tests/LegacyTest.php
index 9852d72..cddfefd 100644
--- a/core/modules/taxonomy/lib/Drupal/taxonomy/Tests/LegacyTest.php
+++ b/core/modules/taxonomy/lib/Drupal/taxonomy/Tests/LegacyTest.php
@@ -38,8 +38,8 @@ function testTaxonomyLegacyNode() {
     $date = new DrupalDateTime('1969-01-01 00:00:00');
     $edit = array();
     $edit['title[0][value]'] = $this->randomName();
-    $edit['date[date]'] = $date->format('Y-m-d');
-    $edit['date[time]'] = $date->format('H:i:s');
+    $edit['created[date]'] = $date->format('Y-m-d');
+    $edit['created[time]'] = $date->format('H:i:s');
     $edit['body[0][value]'] = $this->randomName();
     $edit['field_tags'] = $this->randomName();
     $this->drupalPostForm('node/add/article', $edit, t('Save and publish'));