I've run into an issue where a user submits a form without updating any fields, even though the value we encrypt isn't changing when we pass it into assign_attributes or update_attributes, the iv is still updated.

Normally, I wouldn't consider that a problem, except that because the iv gets updated, the updated_at timestamp is updated and our record auditing gem records a new audit, leading the users to think something changed on the record even though nothing has.

We're using version 3.0.1 of the gem and version 4.2.6 of Rails.