[OSM-talk] Villain?

[Matthias Julius]

Iván Sánchez Ortega <ivan at sanchezortega.es> writes:

> On Friday 14 May 2010 15:03:25 Nakor wrote:
>> I take you to the word. Can you please help me finding out what in the
>> software I use (JOSM) and/or my workflow is "seriously wrong"?
>
> Not running the Validator plugin frequently enough. It detects, warns, and 
> helps fix duplicated nodes.

And not updating the area first before running the Validator and
uploading. 

An easy way to create duplicate objects with JOSM is to create new
objects, save the layer to disk, upload to API and then close JOSM
without saving the layer again (because I just saved it and didn't
change anything, silly JOSM!).  When loading the file again JOSM
treats these objects still as new and happily uploads them again at
the next opportunity.

Aborted uploads can have similar effects when the data was accepted by
the server but the server response did not make it back to JOSM.

The reason behind all this is that the API server is assigning the IDs
for new objects and returns them to the software which in turn needs
to update its local data.

Matthias