Improve MongoDB wrapper server side duplicate validation
Right now, the mongo wrapper library makes it easy for duplicate requests to make it through. We should fix this by adding some sort of validation to ensure that a duplicate has not been submitted, maybe based on the form configuration (eg. a default form config value where _allow_rapid_duplicates defaults to False)
Originally posted by @signebedi in #499 (comment)
Originally posted by @signebedi in #499 (comment)