// Small fix

git-svn-id: http://dev.prestashop.com/svn/v1/branches/1.5.x@17372 b9a71923-0436-4b27-9f14-aed3839534dd

classes/Product.php

@@ -1642,6 +1642,9 @@ class ProductCore extends ObjectModel
 				WHERE pa.`id_product` = '.(int)$this->id.'
 				GROUP BY pa.`id_product_attribute`');
 
+		if (!$combinations)
+			return false;
+
 		$product_attributes = array();
 		foreach ($combinations as $combination)
 			$product_attributes[] = (int)$combination['id_product_attribute'];