Feature Request: Exclude Customers with Attribute ___ from Experiments

I’m a big fan of the Experiments feature. However, in my app I have a discount/affiliate program that gives certain users a discounted price. In the app, if they have the custom RevenueCat attribute “latest_referral” set, it will override their assigned Offering and use the Offering associated with that referral instead. It would be great if I could ignore/exclude customers with that attribute from the results of experiments.