QTableView.setItemDelegateForColumn breaks software

I'm trying to create a simple QTableView with one editable checkbox column.

I've used the tutorial of Robin Burchell (http://blog.rburchell.com/2010/02/pyside-tutorial-model-view-programming_22.html) as a base and converted it to a QTableView with a delegate to draw a textbox on the first column.

When i use the method "setItemDelegateForColumn" (line 250) the program breaks with segmentation fault ("Process finished with exit code 139"). If I use the method "setItemDelegate" instead it works fine.

To test my code I just converted the code to use pyQt instead (change imports on lines 9-10 and Slot on lines 225-274) and it works ok.

Code to reproduce the error attached.