[BUG][0.12] 'bzr init' creates branches incompatibile with bzr-0.11

[Aaron Bentley]

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John Arbash Meinel wrote:
> Agreed. I'd like to defer to whatever fix Aaron would like.

Okay, I've had a chance to reproduce it now, and I agree: unique roots
are unevenly-supported in the 0.11 codebase, and probably ever since
TreeTransform was implemented.  +1 on your fixes.  I'll implement
WorkingTree4 for bzr 0.13.

Sorry for the mess, everyone.

>>As you say, given that 0.11 cannot accomodate a root id here, we will
>>need a new workingtree and repository format to bring this in.  It's
>>your call as RM whether this can be done for 0.12.  Since we're before
>>RC and it would hopefully be a small change it might be OK.  But on the
>>other hand perhaps it should be combined with any other format changes
>>we want for 0.13.

I will not push for WorkingTree4 in 0.12, because the benefits to that
are pretty minor.  But I have the by-value commands implemented now, so
you can expect by-value nested trees in 0.13

Aaron
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