JPA and Hibernate: Bean validation error when merging a transient entity

_NewJpaTest.java

@SpringBootTest
public class NewJpaTest {
    
    @Autowired
    private EntityManager manager;
    
    @Test
    @Transactional
    public void shouldMergeAnAlbumWithItsImages() {
        
        Album album = new Album(List.of(new Image()));

        Album managedAlbum = manager.merge(album); // throws a ConstraintViolationException due to @Size(min=1) violation

        assertNull(album.getId());
        assertNotNull(managedAlbum.getId());
    }
}

Album.java

@Entity
public class Album {
  
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
  
  
    @Size(min = 1)
    @OneToMany(cascade = { 
        CascadeType.PERSIST, CascadeType.MERGE 
    })
    private List<Image> images = new ArrayList<>();
    
    
    @Deprecated
    public Album() {}
    
    public Album(List<Image> images) {
        this.images = images;
    }
    
    public void addImage(Image newImage) {
        this.images.add(newImage);
    }
    
    public List<Image> getImages() {
        return this.images;
    }
}

Image.java

@Entity
public class Image {
  
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    public Long getId() {
        return this.id;
    }
  
}

https://github.com/rafaelpontezup/demo-hibernate-merge-and-validation/blob/master/src/test/java/br/com/zup/edu/demomergewithvalidation/albuns/NewAlbumTest.java#L40