[FLOW3-general] Submit not saved object in forms

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>> For better understandig, I have to save the "contact"-object before with
>> add() or attach(). there is no other way?
>
> Oh, well. You could build a form representing nested objects to have
> contact and address created at the same time.

When I think over that, I came to the same solution. At the other side 
it should be possible to store the form data in a session. but I think 
the first solution will be better.

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