[razortw]

Hi there.
Open /classes/XLite/View/Form/Product/Search/Customer/SimpleForm.php, find this code

    protected function getDefaultParams()
    {
        return parent::getDefaultParams() + array(
            \XLite\View\ItemsList\Product\Customer\Search::PARAM_INCLUDING => \XLite\Model\Repo\Product::INCLUDING_ANY,
        );
    }

and replace it with

    protected function getDefaultParams()
    {
        return parent::getDefaultParams() + array(
            \XLite\View\ItemsList\Product\Customer\Search::PARAM_INCLUDING => \XLite\Model\Repo\Product::INCLUDING_ALL,
        );
    }

Should do the trick.
Of course, any code changes should be implemented as a module in order to keep them intact during upgrades