Robert Collins has voted resubmit. Status is now: Resubmit Comment: I'm 99% sure this collides conceptually with the pack refactoring I did, because I factored out similar duplication of book keeping to avoid it. For details, see: http://bundlebuggy.aaronbentley.com/request/%3C46AA183B.20403%40arbash-meinel.com%3E