Discount not only applied to base price

[wnrdesign]

hello,

I customer of mine is using a lot of custom options and also a lot of different discounts per products.

What we want is this:

Base price is 20 euro
Custom options:

Option A: + 2.00
Option B: + 4.00
Option C: + 6.00

Calculation is going oke so far, for example: I add option A to the base product --> Final price is now 22 euro.

When I add a discount on the product with the override function with (for example) 10 euro. The new base price needs to be 10 euro. but when I apply option A to the product. The new price of the product is still 10 euro instead of 12 euro.

What am I doing wrong or is this a bug in VM2

Kind regards,

wouter