Cart prices are not showing properly

[Tashows]

I created a variant volume price and added the 2x products of that variant to the cart. The price is not affected at all, until I change the item amount to 3x, update the cart and then change it back to 2x.

The price volume has a range of 2..2. I want to make a discount when you just get two items instead of one.

Any clues?

[Tashows]

The problem seems to be coming from this file: https://github.com/spree-contrib/spree_volume_pricing/blob/master/app/models/spree/line_item_decorator.rb
There is a check that updates the line_item price only if the quantity was changed. Commenting that condition out, seems to have solved my issue. Now adding 2x of a variant displays the right price.