public function testCANTDeleteXOwnListWithNULL()
{
$book = $this->_createBook();
asrt(isset($book->xownPage), FALSE);
//not loaded yet, lazy loading
asrt(count($book->xownPage), 2);
//when loaded has 2
$book->xownPage = NULL;
//remove all
R::store($book);
asrt(isset($book->xownPage), FALSE);
//not loaded yet, lazy loading
asrt(count($book->xownPage), 2);
}