Price lists incorrectly applies discount to compare_at_price

We are setting up a Plus shop to use the new B2B customer login and price lists.

We have a price list that gives a 40% discount to the B2B customers.

The price decrease should by applied to the price and not the compare_at_price in the product variant as per the little help box in the compare_at_price.

When I view this product json as a b2b customer I see this.

Which produces this clearly wrong price scenario:

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