[sugar] Matchbox stacking issue

[Marco Pesenti Gritti]

Hi,

I'm attaching a test case that creates two toplevel windows. Each of 
them has a transient dialog associated.

The stacking order in matchbox is:

Dialog 1
Dialog 2
Window 2
Window 1

I'd expect it to be:

Dialog 2
Window 2
Dialog 1
Window 1

and that's what I get in metacity effectively.

Is this a bug? Are there reasons to behave in this way? Or am I simply 
missing something?

Marco