[merge][0.91] set default format to dirstate-tags

[Martin Pool]

On 8/15/07, Robert Collins <robertc at robertcollins.net> wrote:
> I think we have to stop using formats as a proxy for 'what the branch
> object is capable of', because disk format is not the entire story - and
> the smart server is just the easiest example to talk about and consider,
> not the only example.

Yes, I broadly agree.  We should probably be asking
'branch.supports_tags()' rather than 'branch_format.supports_tags()'.
But really this is a bit redundant with just trying the operation and
seeing if it works or not.  I'm trying to fix some tag bugs and will
revisit that then.

-- 
Martin