"Ways with same position" gives errors that are not

[Sylves]

Hi,

JOSM Validator gives me an error when I tag the border of a amenity=courthouse (also with landuse=* and other tags imo) with a complete way tagged barrier=fence. If I follow this ​https://help.openstreetmap.org/questions/38273/how-to-map-barriers-like-fences-on-landuse-borders, it is the right way to tag it. Here is a picture:

​http://image.noelshack.com/fichiers/2015/09/1425061131-josm.png

Why is it considered as an error? For me it is not.

Regards,

Sylves