Commits the data from the widget to the model.
        
        :param      widget | <QWidget>

def commitData(self, widget):
        """
        Commits the data from the widget to the model.
        
        :param      widget | <QWidget>
        """
        self._editColumn = self.currentColumn()
        self.itemChanged.connect(self._commitToSelected)
        super(XOrbTreeWidget, self).commitData(widget)
        self.itemChanged.disconnect(self._commitToSelected)
        self._editColumn = None