Does ExampleMatcher match primarykey by default?

Question

I'm testing my jpa codes with junit, which using ExampleMatcher.

This code should filter users with email by matching end of it.

Here's my code about domain object(User)

@Data
@AllArgsConstructor
@NoArgsConstructor
@RequiredArgsConstructor
@Entity
@Table(name = "myuser")
public class User {
    @Id
    @GeneratedValue
    private long id;

    @NonNull
    private String name;

    @NonNull
    private String email;

    private LocalDateTime createdAt;

    private LocalDateTime updatedAt;
}

And I tested filtering with my code below.

@Test
void crud7(){
    userRepository.save(new User("hyechan", "hyechan1108@google.com"));
    userRepository.save(new User("steve", "steve4234@google.com"));
    userRepository.save(new User("roger", "roger11@naver.com"));
    ExampleMatcher matcher = ExampleMatcher.matching()
            .withIgnorePaths("name")
            .withMatcher("email", endsWith());
    Example<User> example = Example.of(new User("ma", "google.com"), matcher);

    userRepository.findAll(example).forEach(System.out::println);
}

I thought this code would work fine, but no matching data was found.

I've also made sure that three user data are properly been saved.

Also, I found that Hibernate log contains code about matching primary key in query.

Hibernate: 
    select
        u1_0.id,
        u1_0.created_at,
        u1_0.email,
        u1_0.name,
        u1_0.updated_at 
    from
        myuser u1_0 
    where
        u1_0.id=? 
        and u1_0.email like ? escape '\'

---

I don't know why that happened, but when I fix my filtering code like below, it works fine as I want.

I added code to ignore primary key (.withIgnorePaths("id"))

@Test
void crud7(){
    userRepository.save(new User("hyechan", "hyechan1108@google.com"));
    userRepository.save(new User("steve", "steve4234@google.com"));
    userRepository.save(new User("roger", "roger11@naver.com"));
    ExampleMatcher matcher = ExampleMatcher.matching()
            .withIgnorePaths("name")
            .withIgnorePaths("id")
            .withMatcher("email", endsWith());
    Example<User> example = Example.of(new User("ma", "google.com"), matcher);

    userRepository.findAll(example).forEach(System.out::println);
}

So, does ExampleMatcher works with primary key by default, or am I missing something?

FYI) Release Version

id 'org.springframework.boot' version '3.0.2'
com.h2database:h2:2.1.214