[josm-dev] Generating new dataset

[Simon Legner]

Hi!

> What is the correct procedure for creating
> primitives with IDs that do not collide with the OSM DB IDs?

Maybe the quickest way is to open the dataset in JOSM, select all 
objects with Ctrl+A, copy them with Ctrl+C, create a new dataset with 
Ctrl+N, and paste the copied objects with Ctrl+V. Then, to all objects 
should be assigned a new ID.

> I tried
> making the IDs negative, but this causes an exception.

In principle this should work. Perhaps some references between ways and 
nodes or relations and other objects got messed up?

Cheers,
Simon