Attribute duplicates on checkout

I’m using conditional fields to give discounts or add fixed prices depending on the choices done.

However there seems to be something that duplicates only the description of the discount/added price from the previous row to the following row in the checkout:

If Row 1 has added price “A”.
And Row 2 has added price “B”.
Then Row 2 displays that it gets both added price “A” and “B”.
If another row is added, Row 3 with added price “C”, then Row 3 displays added price “A”, “B” and “C”.

The price, however is not affected.

To reproduce:
At the bottom of the page, in the left column choose a date from the dropdown and 2 people in the number input.
In the middle column:
Person 1: add name in the first input and set the number “5” in the second input (age restricted discount), check the second checkbox (“Flygplatstransfer”).
Person 2: add name in the first input and leave the second input blank, check the second checkbox (“Flygplatstransfer”).
Proceed to checkout.

You’ll see two lines of “Flygtransfer” on Person 2 in the checkout, which is incorrect.

The issue occurs in both FF and Chrome.

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