I really don't, since I don't use 3.9 at all. It just seems "broken by design" and I was curious if this is what's causing the traits problem.
I am using 3.9 for all serious (industrial) work. It works well by design, without having to apply hundreds of patches manually before being productive.
The only exception is the Graphics/Balloon bug that I reported here: http://bugs.impara.de/view.php?id=5222
Roel, I would really appreciate if this bug in the ClassBuilder/ChangeNotification could be fixed.
Cheers, Lukas