Copy + Pasting @[JeffAtwood'][1]s [answer][2]: 


> edit: we *DO* provide feedback on
> migrations to people answering via
> topbar notification
> 
<img src="https://i.sstatic.net/l9PMO.png">
> 
> The unsubmitted answer would still be
> saved as a draft, since we auto-save
> drafts for questions and answers every
> 45 seconds.
> 
> However, I'm not 100% sure the draft
> would *be visible* when you came back
> to that answer. Normally it would be,
> but since we suppress the answer
> editing area on migrated / closed /
> otherwise functionally unanswerable
> questions.. might not be in that case.


  [1]: http://meta.stackoverflow.com/users/1/jeff-atwood
  [2]: http://meta.stackoverflow.com/q/81974/133693