This is a newbie question. I am sorry if it’s evident…
I find that in many situations two areas are adjacent. E.g.:
- Two adjacent buildings or houses that share a common wall.
- A building inside an area when part of the building defines part of the outer area. See “Club Social” at http://www.openstreetmap.org/?lat=37.401598&lon=-5.931516&zoom=18&layers=M
It seems to me that the more natural way to map this would be to draw two closed areas with one (or more) shared segments, buts JOSM complains about it. What should I do? Is there any convention bout it?
Thanks.