[MERGE] Tighten up the handling of carried-over inventory entries.

[Martin Pool]

Martin Pool has voted tweak.
Status is now: Conditionally approved
Comment:
I would say that to help people if this ever fires you should also 
include the ie repr and the revision id.  Otherwise fine.

For details, see: 
http://bundlebuggy.aaronbentley.com/project/bzr/request/%3C1218525778.4514.342.camel%40lifeless-64%3E
Project: Bazaar