"Lukas Renggli" <renggli at gmail.com> wrote in message
>> That would unfortunately make it impossible for newbies like me to debug
>> etc.
>
> Did you try to extract all the callback code to a separate method? I
> bet this will solve all problems for everybody.

Yes, it gave me a work-around + better structured code, thanks! The 
underlying closure bug could still cause a lot of trouble, so I posted the 
example here as well.

Thanks
- Sophie