[MERGE] Allow changing --[no-]trees with reconfigure (bug 145033)

[Ian Clatworthy]

Matthew D. Fuller wrote:
> On Fri, Jan 09, 2009 at 10:58:23AM +1000 I heard the voice of
> Ian Clatworthy, and lo! it spake thus:
>> I think you need a test covering "reconfiguration not supported"
>> when used in a non-shared repo.
>>
>> Please add an item to NEWS as well, mentioning the bug and taking
>> the credit for fixing it.
> 
> Added to blackbox tests and done.

Thanks.

> One thing that came to mind in doing that was that this WILL do its
> thing if run on a branch in a shared repo (e.g., will change the
> repo's setting); it doesn't only work when in/pointed at the repo base
> itself.  I don't know if that could be construed as a problem, but I
> don't think it is.

I think that's fine.

bb:tweak

> +    @classmethod
> +    def set_repository_trees(klass, bzrdir, with_trees):
> +        """Convert a repository branch into a standalone branch"""

Hmmm. That docstring was copied from the method above and is wrong.
It ought to be something like ...

  """Set/clear the trees flag on a repository."""

(To be tweaked during the merge to bzr.dev.)

Ian C.