wrapped objects are told to not being persisted. Is it correct?

[GESCONSULTOR - Óscar Bou]

I'm not sure if this is the expected behaviour while testing Domain Objects 
through the JUnit viewer.

While doing tests over factory actions, one assert would be to verify the 
object has been persisted through the 
DomainObjectContainer.isPersistent(domainObject) method. 

If the evaluation is done over a wrapped object, it returns false.

If it's done over the original object, it returns true.

As an example:

                // Test if the Domain Object has been persisted.
                assertTrue(domainObjectContainer
                                
.isPersistent(communicationPathAssociatedWithNode));

                // Node must be wrapped for the Apache Isis validators to be 
executed.
                communicationPathAssociatedWithNode = 
wrapped(communicationPathAssociatedWithNode);

                assertTrue(domainObjectContainer
                                
.isPersistent(communicationPathAssociatedWithNode));


The last assertion fails. The only difference I expected was the validation of 
the programming model. Is it correct? I'm sure there's anything I'm missing.

Thanks in advance!