[TYPO3-mvc] Problems with lazyloadingProxy

[Pascal Geldmacher]

Hey,

I've a Model Order with two other models

/**
  *
  * @var Tx_MfShop_Domain_Model_Customer
  * @lazy
  */
  protected $customer;
	
  /**
   * @var Tx_MfShop_Domain_Model_Product
   * @lazy
   */
  protected $product;

in my controller i load all orders. Now i want to read the product 
information.

for example:
$order->getProduct()->getName().

Then i get the error: " Could not determine the type of the contained 
objects. "

But before I've updated my extbase that works fine.
What i've to do that it will works ?

Thanks for help.

Greetings
Pascal