Java 在 JPA 测试期间实体类中的 @Version 字段没有增加，即使我更新了它

我有一个简单的存储库:

public interface ReviewRepository extends CrudRepository<ReviewEntity, Integer> {

  @Transactional(readOnly = true)
  List<ReviewEntity> findByProductId(int productId);
}

我想使用测试容器进行测试，我遵循了程序并编写了测试用例:

public abstract class MySqlTestBase {
  private static MySQLContainer database = new MySQLContainer("mysql:5.7.32");

  static {
    database.start();
  }

  @DynamicPropertySource
  static void databaseProperties(DynamicPropertyRegistry registry) {
    registry.add("spring.datasource.url", database::getJdbcUrl);
    registry.add("spring.datasource.username", database::getUsername);
    registry.add("spring.datasource.password", database::getPassword);
  }

}



@DataJpaTest
@AutoConfigureTestDatabase(replace = AutoConfigureTestDatabase.Replace.NONE)
class PersistTests extends MySqlTestBase {

  @Autowired
  private ReviewRepository repository;

  private ReviewEntity savedEntity;

  @BeforeEach
  void setupDb() {
    repository.deleteAll();

    ReviewEntity entity = new ReviewEntity(1, 2, "author1");
    savedEntity = repository.save(entity);
    assertEqualsReview(entity, savedEntity);
  }

  @Test
  void update() {
    savedEntity.setAuthor("author2");
    repository.save(savedEntity);



       ReviewEntity foundEntity = repository.findById(savedEntity.getId()).get();
       assertEquals(1, (long)foundEntity.getVersion());
       assertEquals("author2", foundEntity.getAuthor());
          }
    }

我的 comments 也是这样写的:

@Entity
public class ReviewEntity {

  @Id @GeneratedValue
  private int id;

  @Version
  private int version;

  private int productId;
  private int reviewId;
  private String author;

  public ReviewEntity(int productId, int reviewId, String author) {
        this.productId = productId;
        this.reviewId = reviewId;
        this.author = author;
}

          // setter and getter
    
    }

当我运行此测试时，它在assertEquals(1, (long)foundEntity.getVersion());行失败，并显示以下消息:

expected: <1> but was: <0>
Expected :1
Actual   :0

但我更新了ReviewEntity类，根据文档，@Version字段应该会自动增加，但不会发生这种情况.我的测试哪一部分错了？