diff --git a/core/modules/contact/src/Controller/ContactController.php b/core/modules/contact/src/Controller/ContactController.php
index 0ebadc7..c821e2c 100644
--- a/core/modules/contact/src/Controller/ContactController.php
+++ b/core/modules/contact/src/Controller/ContactController.php
@@ -78,12 +78,13 @@ public function contactSitePage(ContactFormInterface $contact_form = NULL) {
     if (!$this->currentUser()->hasPermission('administer contact forms')) {
       $this->contactFloodControl();
     }
+    $config = $this->config('contact.settings');
 
     // Use the default form if no form has been passed.
     if (empty($contact_form)) {
       $contact_form = $this->entityManager()
         ->getStorage('contact_form')
-        ->load($this->config('contact.settings')->get('default_form'));
+        ->load($config->get('default_form'));
       // If there are no forms, do not display the form.
       if (empty($contact_form)) {
         if ($this->currentUser()->hasPermission('administer contact forms')) {
@@ -105,7 +106,7 @@ public function contactSitePage(ContactFormInterface $contact_form = NULL) {
 
     $form = $this->entityFormBuilder()->getForm($message);
     $form['#title'] = String::checkPlain($contact_form->label());
-    $form['#cache']['tags'] = Cache::mergeTags(isset($form['#cache']['tags']) ? $form['#cache']['tags'] : [],  $this->config('contact.settings')->getCacheTags());
+    $form['#cache']['tags'] = Cache::mergeTags(isset($form['#cache']['tags']) ? $form['#cache']['tags'] : [],  $config->getCacheTags());
     return $form;
   }
 
diff --git a/core/modules/forum/src/Controller/ForumController.php b/core/modules/forum/src/Controller/ForumController.php
index 7408763..18d7325 100644
--- a/core/modules/forum/src/Controller/ForumController.php
+++ b/core/modules/forum/src/Controller/ForumController.php
@@ -191,7 +191,7 @@ protected function build($forums, TermInterface $term, $topics = array(), $paren
     if (empty($term->forum_container->value)) {
       $build['#attached']['feed'][] = array('taxonomy/term/' . $term->id() . '/feed', 'RSS - ' . $term->getName());
     }
-    $build['#cache']['tags'] = Cache::mergeTags(isset($build['#cache']['tags']) ? $build['#cache']['tags'] : [],  $this->config('forum.settings')->getCacheTags());
+    $build['#cache']['tags'] = Cache::mergeTags(isset($build['#cache']['tags']) ? $build['#cache']['tags'] : [],  $config->getCacheTags());
 
     return [
       'action' => $this->buildActionLinks($config->get('vocabulary'), $term),
diff --git a/core/modules/user/src/Form/UserCancelForm.php b/core/modules/user/src/Form/UserCancelForm.php
index 3aa2ee5..3223f14 100644
--- a/core/modules/user/src/Form/UserCancelForm.php
+++ b/core/modules/user/src/Form/UserCancelForm.php
@@ -77,6 +77,7 @@ public function getConfirmText() {
   public function buildForm(array $form, FormStateInterface $form_state) {
     $user = $this->currentUser();
     $this->cancelMethods = user_cancel_methods();
+    $config = $this->config('user.settings');
 
     // Display account cancellation method selection, if allowed.
     $admin_access = $user->hasPermission('administer users');
@@ -99,7 +100,7 @@ public function buildForm(array $form, FormStateInterface $form_state) {
       '#description' => $this->t('When enabled, the user must confirm the account cancellation via email.'),
     );
     // Also allow to send account canceled notification mail, if enabled.
-    $default_notify = $this->config('user.settings')->get('notify.status_canceled');
+    $default_notify = $config->get('notify.status_canceled');
     $form['user_cancel_notify'] = array(
       '#type' => 'checkbox',
       '#title' => $this->t('Notify user when account is canceled'),
@@ -113,7 +114,7 @@ public function buildForm(array $form, FormStateInterface $form_state) {
 
     $form = parent::buildForm($form, $form_state);
 
-    $form['#cache']['tags'] = Cache::mergeTags(isset($form['#cache']['tags']) ? $form['#cache']['tags'] : [],  $this->config('user.settings')->getCacheTags());
+    $form['#cache']['tags'] = Cache::mergeTags(isset($form['#cache']['tags']) ? $form['#cache']['tags'] : [],  $config->getCacheTags());
 
     return $form;
   }
diff --git a/core/modules/user/src/Form/UserLoginForm.php b/core/modules/user/src/Form/UserLoginForm.php
index 25c901d..a0c0876 100644
--- a/core/modules/user/src/Form/UserLoginForm.php
+++ b/core/modules/user/src/Form/UserLoginForm.php
@@ -79,13 +79,15 @@ public function getFormId() {
    * {@inheritdoc}
    */
   public function buildForm(array $form, FormStateInterface $form_state) {
+    $config = $this->config('system.site');
+
     // Display login form:
     $form['name'] = array(
       '#type' => 'textfield',
       '#title' => $this->t('Username'),
       '#size' => 60,
       '#maxlength' => USERNAME_MAX_LENGTH,
-      '#description' => $this->t('Enter your @s username.', array('@s' => $this->config('system.site')->get('name'))),
+      '#description' => $this->t('Enter your @s username.', array('@s' => $config->get('name'))),
       '#required' => TRUE,
       '#attributes' => array(
         'autocorrect' => 'off',
@@ -110,7 +112,7 @@ public function buildForm(array $form, FormStateInterface $form_state) {
     $form['#validate'][] = '::validateAuthentication';
     $form['#validate'][] = '::validateFinal';
 
-    $form['#cache']['tags'] = Cache::mergeTags(isset($form['#cache']['tags']) ? $form['#cache']['tags'] : [],  $this->config('system.site')->getCacheTags());
+    $form['#cache']['tags'] = Cache::mergeTags(isset($form['#cache']['tags']) ? $form['#cache']['tags'] : [],  $config->getCacheTags());
 
     return $form;
   }