diff -u b/core/tests/Drupal/KernelTests/Core/Entity/ContentEntityCloneTest.php b/core/tests/Drupal/KernelTests/Core/Entity/ContentEntityCloneTest.php
--- b/core/tests/Drupal/KernelTests/Core/Entity/ContentEntityCloneTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Entity/ContentEntityCloneTest.php
@@ -187,7 +187,8 @@
     // entity cloning for the new translation and create references for some of
     // the entity properties.
     $entity = EntityTestMulRev::create([
-      'name' => $this->randomString(),
+      'name' => 'original-name',
+      'uuid' => 'original-uuid',
       'language' => 'en',
     ]);
     $entity->addTranslation('de');
@@ -207,13 +208,15 @@
     // reference to those local cache properties.
     $uuid_field_name = $entity->getEntityType()->getKey('uuid');
     $this->assertFalse($entity->getFieldDefinition($uuid_field_name)->isTranslatable());
-    $clone->$uuid_field_name->value = 'test-change-uuid';
-    $this->assertNotEquals($entity->uuid(), $clone->uuid());
+    $clone->$uuid_field_name->value = 'clone-uuid';
+    $this->assertEquals('original-uuid', $entity->uuid());
+    $this->assertEquals('clone-uuid', $clone->uuid());
 
     $label_field_name = $entity->getEntityType()->getKey('label');
     $this->assertTrue($entity->getFieldDefinition($label_field_name)->isTranslatable());
-    $clone->$label_field_name->value = 'test-change-label';
-    $this->assertNotEquals($entity->label(), $clone->label());
+    $clone->$label_field_name->value = 'clone-name';
+    $this->assertEquals('original-name', $entity->label());
+    $this->assertEquals('clone-name', $clone->label());
   }
 
 }