[Tagging] Add some tag to identify disputed borders

[Andy Townsend]

On 26/11/2018 11:24, Peter Elderson wrote:
> The whole thing seems pretty shaky to me.
>
>
That's unfortunately as true in the physical world as it is in OSM.

... and Paul Norman's "osmborder" (mentioned by Noémie previously) is a 
huge start - you get a list of boundary segments classified according to 
"dividing_line", "disputed", and "maritime".  However I suspect that 
more may be needed to classify what sort of dispute something is (and a 
particular one may be part of several, of different sorts).

There is some existing tagging on this - from 
https://taginfo.openstreetmap.org/search?q=dispute click through to look 
at the other tags on the various disputed boundaries.

Best Regards,

Andy