ZF2-461: $form->bind() return warning when one of the required fileds is empty


Warning: array_walk() expects parameter 1 to be array, null given in /.../vendor/ZendFramework/library/Zend/Stdlib/Hydrator/ArraySerializable.php on line 44


It seems that I missed a returning array in:

public function getArrayCopy()
    return $this->form_data;

Maybe the error should be more clear?

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