[MERGE] Roll back the overly big fix to bug 304841, allowing _fetch order to move to RepositoryFormat.

[John Arbash Meinel]

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Robert Collins wrote:
> This removes _part_ of the fix made for bug 304841, but not all of it.
> The test case for the bug is still present (and passes).
> 
> This part of the fix is not necessary (and wouldn't be sufficient
> anyway). It's not sufficient because inserting into a stacked repository
> on the server side can't see the fallback repositories; and its not
> necessary because we can ensure correct behaviour without this.
> 
> 'knit' repositories do not stack at all, and pack repositories are
> atomic so the ordering does not matter.
> 
> In a follow up I'm moving the _fetch flags for fetching off Repository
> down to RepositoryFormat, because these flags represent the physical
> capabilities of the repository.
> 
> -Rob
> 

You attached a bundle with no revisions.

BB:resubmit

John
=:->

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