addNodes - smarter implementation?

[thsc42]

AddNodes in OSMExtractor add nodes to ways. That makes perfect sense during way extraction.
A way geometries might already exist during relation extraction. Could that geometry be used instead of re-constracting that way from nodes. Could e.g. increase speed of addNodes which is rediculous bad (takes almost a second (relation import July, 2nd Germany (inter)-> integration db)