Rollbacks leave visual clutter for cards in exile

If you exile a card, then roll back, the visual of the card in exile remains, even if - as far as I can tell - the card itself returns to the correct location.

Example: exile a card with shelldock isle, then roll back. It still looks like you have a card exiled face down, but you can no longer look at it (because the real card isn't there any more).

If relevant, I was doing this in the test framework - so after the rollback, the Shelldock Isle itself no longer existed at all.