[MERGE][bug #300289] Avoid extracting revision texts

[Andrew Bennetts]

Andrew Bennetts has voted tweak.
Status is now: Conditionally approved
Comment:
Interesting that you don't use BranchBuilder... I guess for consistency 
with the nearby tests?

I think there's a comment in insert_record_stream in knit.py that should 
be updated:

                 # Not a fulltext, and not suitable for direct insertion 
as a
                 # delta, either because it's not the right format, or 
because
                 # it depends on a base only present in the fallback 
kvfs.

The other reason a non-fulltext record might not be insertable is 
because deltas aren't permitted in this versioned file, i.e. 
self._max_delta_chain is 0.  The code appears to do the right thing, as 
you state in your explanation of the patch, but the comments in the code 
don't mention this case.

Otherwise this seems fine.

For details, see: 
http://bundlebuggy.aaronbentley.com/project/bzr/request/%3C492CC6D0.7040707%40arbash-meinel.com%3E
Project: Bazaar