Migrate existing data when formatting existing cards
Idea
+status
+priority
+issues
+solution
When you add a hard form to card(s) that already exist and have content, offer to copy the current content to a relative inclusion card (? if there are any of matching data type).
--John Abbe.....Thu Jan 31 07:47:39 PST 2008
Note that you can see the old content in the Changes tab.
+discussed in support tickets
+relevant user stories