[Tagging] part_of:wikidata key

[Christoph Hormann]

On Tuesday 28 November 2017, Andy Mabbett wrote:
> > the established rule not to have external IDs in the
> > OSM database
>
> What "established rule" would that be? Established by whom; when and
> how?

I am sorry for the ambiguous wording - as Fred said i meant essentially 
a custom - calling it "established" was meant to indicate that.

You could however argue that this stems from the evidently existing rule 
of on-the-ground verifiability.

-- 
Christoph Hormann
http://www.imagico.de/