diff -u b/core/lib/Drupal/Core/Entity/ContentEntityBase.php b/core/lib/Drupal/Core/Entity/ContentEntityBase.php
--- b/core/lib/Drupal/Core/Entity/ContentEntityBase.php
+++ b/core/lib/Drupal/Core/Entity/ContentEntityBase.php
@@ -503,8 +503,8 @@
     }
     // Populate $this->fields to speed-up further look-ups and to keep track of
     // fields objects, possibly holding changes to field values.
-    // Computed fields are always computed as their value might be subject to changes
-    // in the entities' lifecycle.
+    // Computed fields are always computed as their value might be subject to
+    // changes in the entities' lifecycle.
     if (!isset($this->fields[$name][$langcode]) || $this->fields[$name][$langcode]->isComputed()) {
       $definition = $this->getFieldDefinition($name);
       if (!$definition) {
only in patch2:
unchanged:
--- a/core/tests/Drupal/Tests/Core/Entity/ContentEntityBaseUnitTest.php
+++ b/core/tests/Drupal/Tests/Core/Entity/ContentEntityBaseUnitTest.php
@@ -472,9 +472,12 @@ public function testLabel() {
    *   - Fields array for $fields.
    */
   public function providerGet() {
+    $items = $this->getMockBuilder('Drupal\Core\Field\FieldItemList')
+      ->disableOriginalConstructor()
+      ->getMock();
     return [
       // Populated fields array.
-      ['result', 'field_name', 'langcode', ['field_name' => ['langcode' => 'result']]],
+      [$items, 'field_name', 'langcode', ['field_name' => ['langcode' => $items]]],
       // Incomplete fields array.
       ['getTranslatedField_result', 'field_name', 'langcode', ['field_name' => 'no_langcode']],
       // Empty fields array.