[MERGE][1.3.1][#208418] Return the correct knit serialisation method in _StreamAccess

[Andrew Bennetts]

This bundle has the fix Martin included in 1.3.1rc1, and also a test for that
fix.

The problem was that sometimes _StreamAccess will return records as fulltexts
even if the underlying knit stores it as a line-delta, but the _StreamIndex
wasn't taking that into account in its get_build_details method (or get_options
or get_method, which are also fixed here, but weren't responsible for any known
bugs yet).  Martin did a little extra work to make the code contributing to this
bug clearer, so this isn't a strictly minimal diff, but I think it's better this
way.

This fix should be merged to bzr.dev, in addition to the 1.3.1 release.

Please review, and have a great weekend!

-Andrew.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: 208418-test-3292.patch
Type: text/x-diff
Size: 14500 bytes
Desc: not available
Url : https://lists.ubuntu.com/archives/bazaar/attachments/20080404/e9299ba9/attachment-0001.bin