Hibernate does not output subtitle if not

We have the following domain: Members and Channels.

Member is the equivalent of a user.

@Entity
@Table(name = "member")
public class Member {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @Column(name = "first_name")
    private String firstName;

}

      

        
        
        
      

    

Channel - Will group blog posts by topic.

@Entity
@Table(name = "channel")
public class Channel {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "id")
    private Long id;

    @Column(name = "name")
    private String name;

}

      

        
        
        
      

    

Members can be assigned to channels by becoming members in the channel. Thus, we have a ChannelMember object, since we don't always want to get both ends of the relationship.

@Entity
@Table(name = "channel_member")
public class ChannelMember {
    @Id
    @Column(name = "id")
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @OneToOne
    @JoinColumn(name = "channel_id", nullable = false)
    private Channel channel;

    @OneToOne
    @JoinColumn(name = "member_id", nullable = false)
    private Member member;
}

      

        
        
        
      

    

We are using Spring data JPA and MySQL for our provisioning (Spring release version 1.5.3).

Why can a separate query in a JPQL query for Hibernate fetch any records in the following case?

Sample repository code as follows:

@Repository
public interface MemberRepository extends JpaRepository<Member, Long> {
    @Query("select cm.member from ChannelMember cm")
    List<Member> getNotWorking(); // empty List will be returned

    @Query("select distinct cm.member from ChannelMember cm")
    List<Member> getWorking();
}