[OSM-newbies] Overlapping Areas

[Paul]

In the "Others" section of JOSM Validator it often flags Overlapping
Areas as being  a problem yet there are cases when areas should overlap
(a sea overlaps onto a beach). Are these being flagged as Validator
can't distinguish between the areas and is therefore leaving it up to
the mapper to decide if they are correct or should areas not overlap
regardless of type?

Cheers

Paul