Discount Error in: Has All Of These Product Variants In The Cart

I think the behaviour of this feature is not very safe.

When you add a set of products to cart in doscount and then increase quantity of them, all each product is in discount.

For example:

1.
Cart:
Prod1 (quantity=1) discounted
Prod2 (quantity=1) discounted

2.
Customer increases quantity of Prod2 by +1

3.
Cart:
Prod1 (quantity=1) discounted
Prod2 (quantity=2) discounted each item of this product

I think that only each set should be discaounted or discount should be applied in sets like
all in quantity = 1, all in quantity =2 ...

No matter what type of discount requirement you selected. Discounts are applied per item