[openstreetmap/openstreetmap-website] [notes API] Prevent duplication of the same note with equal coordinates and text (Issue #6100)

[mmd]

mmd-osm left a comment (openstreetmap/openstreetmap-website#6100)

https://dupnotes.webmapping.cyou/creator_om.html has a few examples like https://www.openstreetmap.org/note/4806005 and https://www.openstreetmap.org/note/4806010 where the user has added additional text "It is now changed to Belissimo Pizza". Both notes appear to be completely identical otherwise.

However, I've also seen examples like https://www.openstreetmap.org/note/4808109 + https://www.openstreetmap.org/note/4808110 - or - https://www.openstreetmap.org/note/4801012 and https://www.openstreetmap.org/note/4801013 where the same user has created notes at the same location, though with deviating manually added texts.

Some mappers might consider both use cases to be duplicates, although from a technical point of view, only the first example would be a duplicate.


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