Payment still required when balance is $0.00

[thebeuving]

When checking out if I apply  a promo/coupon that brings the total to $0.00, it still asks me for my credit card.

As a solution I setup a "Free" payment type when the total was $0.00 but since the plugin seems to look at the base price not so this option does not appear when I am checking out.

Is this a bug or is there another way I can configure this to work?

Thanks,
David