Hmm, good question. I'm not dropping anything, so I'm technically not destroying anything. But in terms of what the user sees, yeah. The difficulty here is that we are adding values, so we can't necessarily map existing data to the new values. e.g. if a position was paid, the position role could be Job or Internship. Likewise,  `!position_type_paid` and `position_type_volunteer` don't necessarily imply academic credit.