[OSM-dev] Super-relations or not

[Marcus Wolschon]

I'm using routes in way-simplification to generate simplified maps for
realtime rendering of larger areas when zooming out.

It's quite a lot of work with LOTS of cases to try to sort
route-relations that are randomly sorted with parts
being other relations instead of ways, parts being contained twice,
parts missing in the relation but having a
ref= -tag or a ref_nat= -tag or ... , parts having a ref= -tag with
the wrong road-number that should NOT be
made a part of this simplified way,...