hibernate双向一对多，在 多 方查询，n+1问题，高手帮帮忙

[三千大千世界]

CategoryDetail类

@Id
@Column
@GeneratedValue(strategy=GenerationType.AUTO)
private long categoryDetailId;
@Column
private String categoryDetailName;
@Column
private String enabledFlag;
@ManyToOne
@Fetch(FetchMode.JOIN)
@JoinColumn(name="categoryId")
private Category category;

Category类
@Id
@Column
@GeneratedValue(strategy=GenerationType.AUTO)
private long categoryId;
@Column
private String categoryName;
@Column
private long userId;
@Column
private String enabledFlag;

@OneToMany
@Fetch(FetchMode.JOIN)
@JoinColumn(name="categoryId")
private List<CategoryDetail> details = new ArrayList<CategoryDetail>();
用的spring集成hibernate，都是4.X的版本，查询Category的时候，只有一条sql，是Category join CategoryDetail的
但是查询CategoryDetail的时候，就有两条sql，
select
categoryde0_.categoryDetailId as category1_1_1_,
categoryde0_.categoryId as category4_1_1_,
categoryde0_.categoryDetailName as category2_1_1_,
categoryde0_.enabledFlag as enabledF3_1_1_,
category1_.categoryId as category1_0_0_,
category1_.categoryName as category2_0_0_,
category1_.enabledFlag as enabledF3_0_0_,
category1_.userId as userId4_0_0_
from
CategoryDetail categoryde0_
left outer join
Category category1_
on categoryde0_.categoryId=category1_.categoryId
where
categoryde0_.categoryDetailId=?
第二条：
select
details0_.categoryId as category4_0_1_,
details0_.categoryDetailId as category1_1_1_,
details0_.categoryDetailId as category1_1_0_,
details0_.categoryId as category4_1_0_,
details0_.categoryDetailName as category2_1_0_,
details0_.enabledFlag as enabledF3_1_0_
from
CategoryDetail details0_
where
details0_.categoryId=?

加lazy是不起作用的，
为什么CategoryDetail（多方）join拿到Category（一方）之后，进行resolve的时候，Category还要再去查询一遍CategoryDetail表啊(源码里面有个doinitializedEntity（好像是这个名字）做了这个加载的事情)，求大神告诉一下解决方案，万分感谢啊