sender().data() method not working when data is custom object

I'm trying to make a QAction pass a custom object as it's data, so I can grab it via QWidget.sender().data()
This works just fine for a default object like a dictionary, but not for a custom object that I need to use.

This works fine in PySide 1.0.9 but PySide 1.2.1 always returns None when querying sender().data() from a QAction that has a custom object assigned to it's data.

Here is some sample code that shows the problem:
http://pastebin.com/U0Y7CHw3

Cheers,
frank
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