Shelve should be available as revisionspecs

[Stefan Monnier]

To make better use of shelves, they should be useable from other commands than just "bzr (un)shelve".
E.g. we should be able to use "bzr merge -r shelf:N" instead of "bzr unshelve --keep N" and "bzr diff --change shelf:N" to see the content of that shelve without obfuscating it with potential conflicts due to changes that happened since the shelf was created.
An alternative would be to allow shelves as branches: "bzr merge .bzr/checkout/shelf/shelf-N" or "bzr diff --change -1 .bzr/checkout/shelf/shelf-N".

[Martin Pool (mbp)]

  status confirmed
  importance medium
  tags shelve feature

good idea