Our organization just enabled Salesforce state/country picklists. This is causing a problem when a lead comes into Marketo with a state other than null where the country is not United States or Canada (or a handful of others). The lead (or updates) won't sync to Salesforce because they don't have a valid state, which is null in this case. I have a smart campaign to catch these, but when I set the flow to Change Data Value, Attribute is State, and new value is left blank, it doesn't fire when it should. Is there a way to express the null value so that this will work?