Allow boundary=* to share an OSM way with highway=*, waterway=* and other ways

[Hb---]

It is common that an administrative border runs in the middle of a waterway. But if a boundary and a waterway are tagged on the same OSM way, then the JOSM validator warns about "Overlapping ways".

This warning should not show up in case of waterways boundarys.

[GerdP]

Hmm, yes, I would go one step further: in my eyes this test should ignore all overlaps ways where an administrative boundary is involved.

[GerdP]

add boundary to default ignore list for overlapping ways test

[naoliv]

I actually like this warning to find duplicate ways. Is there a way to keep it, even if at informational level?

[GerdP]

Yes, the patch just changes the default values for preference overlapping-ways.ignored-keys

[mkoniecz]

"administrative border runs in the middle of a waterway" - so once waterway course changes then border changes? In Poland many borders are defined "place where waterway was present in year XYZ"

See for example ​https://www.openstreetmap.org/relation/2811296#map=16/50.4143/18.0904

[Hb---]

Even in Poland rivers and admin borders share nodes. Example: Same river Odra 6 km to south east ​https://www.openstreetmap.org/node/2084184416#map=18/50.37043/18.12533

Without disputing this feature request for closed ways the warning for admin_border on another way should be deleted or downgraded to an information.

[mkoniecz]

"Even in Poland rivers and admin borders share nodes. Example: Same river Odra 6 km to south east" - I would need to check it but I am pretty sure that it is a tagging mistake.