Failing tests merging bzr.dev to brisbane-core

[Robert Collins]

On Wed, 2009-03-18 at 09:32 +1100, Andrew Bennetts wrote:
> 
> 
> Note that the fetch code itself now notices if it's upcasting to
> rich-root, and
> if so the StreamSource will generate root texts automatically (and
> generate the
> stream in topological order).  So we could perhaps look at removing
> InterDifferingSerializer altogether.  Currently removing it breaks
> test_fetch_to_knit3(RepositoryFormatPackDevelopment5Subtree) due to
> xml8's
> _unpack_entry having no entry_cache, but the other test_fetch_to_knit3
> scenarios
> pass.

John is also trying to avoid fetch()'s two passes over the inventory -
two passes over the inventory client is more expensive; and the batching
allows better groupcompress behaviour as well. So we have room to
improve (e.g. not examine the inventory server side for groupcompress
repository targets, or similar).

-Rob
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