[TYPO3-mvc] Could not serialize Domain Object

[Claus Fassing]

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Hello,

I try to pass an object with form arguments.

$this->view->assign('newPerson', $newPerson);
Object is not NULL !

The Form include
arguments="{newPerson : newPerson}"

and the target action got the related @param annotation and the object
as argument.

The person object extend Tx_Extbase_DomainObject_AbstractEntity but the
exception return

"It is neither an Entity with identity properties set, nor a Value Object."

There are the following annotations on the person object.
@scope prototype
@entity

Is there an interface like serializable needed to implement or anything
else to get this work ?

Greetings Claus
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