Total / Sub total doubled after updated to 2.4.0

-- HikaShop version -- : 2.4.0
-- Joomla version -- : 3.4
-- PHP version -- : 5.3.10

Hi!

After having updated to 2.4.0 we have a issue where our "subtotal / total" seems to double of the price.

Example:

Example 1:
Product costs 50 Euro. On the Sub Total / Total it says: 100 Euro

Example 2:
Two products costs 100 Euro together, in the sub total / total it says 200 Euro

We use floating tax prices and this happens with or without shipping, we have also tried to clear cache and all related to that.

The error is visible both in checkout and in the cart module, on product listings and product page, the price is however displayed correctly

There are no errors generated.