All Satchmo Discount filters call the main filter
All of the filters in the /product/templatetags/satchmo_discounts.py file are registered to call their main filter. This is unexpected behavior, since calling the untaxed_discount_cart_total should return the 'untaxed' cart total, but this filter is registered to the discount_cart_total function, which will calculate and return the 'taxed' cart total.
I have attached a diff with all of the filters registered to their corresponding functions.
Reported by nosforz