I'm using the 2.0.2 RC.
I have a situation where I have a Ruby class along with five different subclasses. When I click on the overridden indicator next to the class definition of method definition while editing within the superclass, I see 4 out of my 5 subclasses. The only difference I can see in the definition of those subclasses is that all of them have an "include" of another module *except* for the subclass which is the one not showing up when clicking on the overridden indicator. I added an "include" of some module and now that subclass will show up. I then remove that bogus "include" and that subclass no longer shows up in the overridden indicator.
When I'm in that subclass it does show which methods override ones from its superclass even the superclass does not show it as an override.
When I build the model dependency diagram it is draw correctly with all 5 subclasses.