protected function _prepareValueOptions()
{
$selectReady = $this->getData('value_select_options');
$hashedReady = $this->getData('value_option');
if (in_array($this->getAttribute(), ['stock.is_in_stock', 'has_image', 'price.is_discount'])) {
$selectOptions = $this->booleanSource->toOptionArray();
$this->_setSelectOptions($selectOptions, $selectReady, $hashedReady);
} else {
parent::_prepareValueOptions();
}
}