diff --git a/core/lib/Drupal/Core/Config/Entity/ConfigStorageController.php b/core/lib/Drupal/Core/Config/Entity/ConfigStorageController.php
index b472b8f..a41fd42 100644
--- a/core/lib/Drupal/Core/Config/Entity/ConfigStorageController.php
+++ b/core/lib/Drupal/Core/Config/Entity/ConfigStorageController.php
@@ -298,7 +298,7 @@ public function save(EntityInterface $entity) {
       $id = $entity->getOriginalID();
     }
     $config = config($prefix . $id);
-    $is_new = $config->isNew();
+    $is_new = $entity->isNew();
 
     if ($id !== $entity->id()) {
       // Renaming a config object needs to cater for:
diff --git a/core/modules/block/lib/Drupal/block/Tests/BlockStorageUnitTest.php b/core/modules/block/lib/Drupal/block/Tests/BlockStorageUnitTest.php
index ad1229a..5079ad8 100644
--- a/core/modules/block/lib/Drupal/block/Tests/BlockStorageUnitTest.php
+++ b/core/modules/block/lib/Drupal/block/Tests/BlockStorageUnitTest.php
@@ -142,8 +142,7 @@ protected function renderTests() {
     $expected = array();
     $expected[] = '  <div id="block-test-block"  class="block block-block-test">';
     $expected[] = '';
-    $expected[] = '    <h2 class="">Test block html id</h2>';
-    $expected[] = '  ';
+    $expected[] = '    ';
     $expected[] = '  <div class="content">';
     $expected[] = '      </div>';
     $expected[] = '</div>';
diff --git a/core/modules/overlay/overlay.module b/core/modules/overlay/overlay.module
index 54eaf18..632d270 100644
--- a/core/modules/overlay/overlay.module
+++ b/core/modules/overlay/overlay.module
@@ -477,8 +477,7 @@ function overlay_block_access($block) {
   // reason for duplicating effort here is performance; we do not even want
   // these blocks to be built if they are not going to be displayed.
   if ($regions_to_render = overlay_get_regions_to_render()) {
-    $config = $block->getConfig();
-    if (!in_array($config['region'], $regions_to_render)) {
+    if (!in_array($block->get('region'), $regions_to_render)) {
       return FALSE;
     }
   }