diff --git a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EntityReferenceItem.php b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EntityReferenceItem.php
index 905a132..d995991 100644
--- a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EntityReferenceItem.php
+++ b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EntityReferenceItem.php
@@ -164,7 +164,7 @@ public function setValue($values, $notify = TRUE) {
       }
       elseif (isset($values['target_id']) && isset($values['entity'])) {
         // If both properties are passed, verify the passed values match.
-        if ($this->get('entity')->getTargetIdentifier() != $values['target_id']) {
+        if ($this->get('entity')->getTargetIdentifier() != $values['target_id'] && ($values['target_id'] != static::$NEW_ENTITY_MARKER || !$this->entity->isNew())) {
           throw new \InvalidArgumentException('The target id and entity passed to the entity reference item do not match.');
         }
       }
diff --git a/core/modules/language/src/Tests/EntityDefaultLanguageTest.php b/core/modules/language/src/Tests/EntityDefaultLanguageTest.php
index fa1a759..b3b109a 100644
--- a/core/modules/language/src/Tests/EntityDefaultLanguageTest.php
+++ b/core/modules/language/src/Tests/EntityDefaultLanguageTest.php
@@ -31,6 +31,8 @@ class EntityDefaultLanguageTest extends KernelTestBase {
   public function setUp() {
     parent::setUp();
 
+    $this->installEntitySchema('user');
+
     // Activate Spanish language, so there are two languages activated.
     $language = $this->container->get('entity.manager')->getStorage('configurable_language')->create(array(
       'id' => 'es',
diff --git a/core/modules/system/src/Tests/Entity/BundleConstraintValidatorTest.php b/core/modules/system/src/Tests/Entity/BundleConstraintValidatorTest.php
index be2dc48..6886e29 100644
--- a/core/modules/system/src/Tests/Entity/BundleConstraintValidatorTest.php
+++ b/core/modules/system/src/Tests/Entity/BundleConstraintValidatorTest.php
@@ -29,6 +29,7 @@ class BundleConstraintValidatorTest extends KernelTestBase {
 
   protected function setUp() {
     parent::setUp();
+    $this->installEntitySchema('user');
     $this->typedData = $this->container->get('typed_data_manager');
   }
 
diff --git a/core/modules/system/src/Tests/Plugin/ContextPluginTest.php b/core/modules/system/src/Tests/Plugin/ContextPluginTest.php
index c7dab96..5b04cd5 100644
--- a/core/modules/system/src/Tests/Plugin/ContextPluginTest.php
+++ b/core/modules/system/src/Tests/Plugin/ContextPluginTest.php
@@ -25,6 +25,8 @@ class ContextPluginTest extends KernelTestBase {
    * Tests basic context definition and value getters and setters.
    */
   function testContext() {
+    $this->installEntitySchema('user');
+
     $name = $this->randomMachineName();
     $manager = new MockBlockManager();
     $plugin = $manager->createInstance('user_name');