[jira] Created: (OPENJPA-1913) If fetch-groups is used, detaching an entity will lead to all lazy loaded members get reset to null

[Mark Struberg (JIRA)]

If fetch-groups is used, detaching an entity will lead to all lazy loaded 
members get reset to null
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                 Key: OPENJPA-1913
                 URL: https://issues.apache.org/jira/browse/OPENJPA-1913
             Project: OpenJPA
          Issue Type: Bug
          Components: kernel
    Affects Versions: 2.1.0
            Reporter: Mark Struberg
             Fix For: 2.2.0


If I use openjpa.DetachState=fetch-groups and detach an entity with a lazy 
loaded list, this list gets reset to null.

An example:

class @Entity Person {
   private String name;

    @OneToMany(mappedBy = "group", cascade = {CascadeType.ALL})
    private List<Subscription> subscriptions = new ArrayList<Subscription>();
 ...}

I load the Person and access the subscriptions inside a transaction. I get a 
person instance with e.g. 3 subscriptions. 
If I now close the EntityManager and my person gets detached, the subscriptions 
list is suddenly null!

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