We have an editable feature service in portal. Some fields in the feature class have domains associated with them. When a user edits a record in the attribute editor popup all the fields with domains have a warning message stating "This value is required." Even though all these fields allow null values. It confuses the users, because a) they know values in the fields are not required, and b) you can save the record with no error w/o putting a value in those fields. What gives? How can I suppress that warning?