smal fix on product quantity

controllers/CprPreregistrationController.php

@@ -32,7 +32,7 @@ class CprPreregistrationController
             'product_type' => v::stringType()->notEmpty()->alnum(" -_/.,")->length(1, 100),
             'internal_control_number' => v::stringType()->notEmpty()->alnum("-_/.")->length(1, 100),
             // Accept numeric strings convertible to int
-            'product_quantity' => v::intVal()->min(1),
+            'product_quantity' => v::stringType()->notEmpty()->alnum("-_/.")->length(1, 100),
             'property_name' => v::stringType()->notEmpty()->alnum(" -_/.,")->length(1, 150),
             'property_location' => v::stringType()->notEmpty()->alnum(" -_/.,")->length(1, 200),
         ];