product class not working cause of a unset count_callback

Hi there,

I can't get the uc_discounts product class module to work. I've been looking through the code, and the discount routines stop at the following point. In the function uc_discounts_product_discount_price in uc_discounts.module there is a condition on line 674:
if (isset($condition_info[$condition->property]['count_callback'])) {..} This never passes and results in a $c = false in the following loop to set the $condition_groups.

When looking at the uc_discounts_product_class.module I can't find any reference to count_callback.

I'm new to ubercart so I might be completely missing something here :-)

Tnx,

HnLn