QUndoStack + QUndoView possible bug

[Alundra]

Hi,
I have found a possible bug in QUndoStack+QUndoView, surely the bug is only in QUndoStack since QUndoView calls setIndex of QUndoStack.
The bug is when I undo and redo step by step I have never problem but if I undo and redo more than one step, I got not the same result.
Is it possible to overwrite the setIndex QUndoView does to make a custom for-loop to call undo() or redo() of each command ?
Since all works fine step by step, that looks like a real bug.
Thanks for the help