[Rebuild] Extending Richard's "v0 for relations" suggestion

[ant]

Hi,

On 17.02.2012 17:20, Ed Loach wrote:
>> * In a merge, if tags were copied from a merged (deleted) way, it
> is
>> worth considering whether the tags were clean. However, the v0
>> approach
>> doesn't help with that.
>
> No, but in the case that ways are merged, you will
> a) have a pre-merged way which had tags
> b) someone doing the merging who has either accepted or not who has
> taken the decision which tags to change.
>
> So, if tags change as a result of a merge, you can treat it as any
> other tag change on any way - base whether things are clean or not
> on the accepted status of the mapper.

No, because if the tags were clean on the (non-surviving) pre-merge way 
and were copied across the merge, they should also be clean in the 
post-merge way, regardless of who did the merge.

cheers
ant