[josm-dev] Extending JOSM conflict facilities to support different primitive types

[Josh Doe]

Hi Karl,
As part of my conflation plugin work, I was thinking about extending
the core JOSM code to support resolving conflicts between different
primitive types, rather than rolling everything on my own. I know this
kind of breaks with the intention of the conflict tools, which are of
course to resolve conflicts between different versions of the same
primitive. So the two big changes would be:
1) Allow creation of "conflicts" between different objects, not just
different versions. This would be allowed between two different
objects on the server, two objects on local, or a mix. This would
essentially be a more robust form of the merge node command.
2) Allow creation of "conflicts" between different types of
primitives, i.e. between a way and a node. Of course in this case it
doesn't make sense to "resolve" nodes/members, but only tags.

Does this make any practical or technical sense? How deep is the
assumption that conflicts are always between primitives of the same
type?

Aside from helping with my conflation plugin, this would also allow
merging of ways (possibly utilizing the utilsplugin2 replace geometry
command) and relations.

Thanks for any input,
-Josh