ToolTip regression?

[Rob Hasselbaum]

Howdy. I noticed while testing my Plasmoid on KDE 4.4.2 that tooltips
are not working in my Plasma::TreeView. From what I can tell, the
Qt::ToolTipRole does not get queried in the model at all. It's
possible this was happening in earlier releases of 4.4, but I didn't
notice it until now. It works fine in 4.3.

Is this a bug? Or is there a trick to get this to work in 4.4?

Thanks,
-Rob