[XForms] mouse wheel in browser crashes whole app

[Clive A Stubbings]

Michal Szymanski  said:

> Howerver, quite often, possibly
> (although I am not sure) when the browser has many lines and I rotate
> the wheel fast, the whole application crashes badly.

jason cipriani said:

> It's weird that it crashes, though. When you say it only happens in
> browsers with a lot of items, how many items is "a lot"?

I'm with Jason on this one. I'd bet its a code bug in your app.. I use
big browser lists and I had exactly the same symptom. I spent a while 
suspecting xforms too - but it was me ;-(

If it helps at all, in my case, the root cause was it was a callback
being called with no line selected in the browser. I didn't check,
and ended up dereferenced a wild pointer and core-dumped.

Cheers
Clive