Jochen, ridding the osm of these unnecessary source tags seems like a good
candidate for our MapRoulette challenge. :)
Putting the sources on the objects has been deprecated for a while. The source
should be put on the changeset only. If you are doing edits that involve
several different sources, it is best to split the changes up into different
changesets. Of course this is not always possible, then you can also put
several sources in the changeset source tag. Adding the source to the objects
was deprecated, too fined-grained source tagging simply doesn't make much
sense. We can not track every source for every node, way, or relation or the
parts of them for every tiny change that somebody does. In the end most data
will have multiple sources and figuring out what came from what can only be
done going through the changeset tags, not by looking at the tags on the data
itself. Jochen -- Jochen Topf
N
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