Optionalwithout?: FeedbackColumn[]Columns the store's table doesn't have (mapped to null). The
contract then checks the store refuses a value for each (rather than
losing it) and reads it as null; with no input, that no rating can
become a case; and with no status, that every rating reads as OPEN.
Options for the feedback store contract, for a store on an app's own thumbs table that lacks some of Evalkeeper's columns.