Comment 5 for bug 906003

I confirm this issue as general but unpredictable behavior:
see forum: http://www.openerp.com/forum/post98200.html#p98200

In a complete custom module, on_change events trigger at view init time, though some other forms don't show such problem.
This is a serious bug since it breaks the form's logic.

I don't see where to start investigating. Could it be the object's default values being applyed (get defaults)

Help appreciated

Rgds,
Nicolas