QGraphicsTextItem renders "w" incorrectly

When creating a QGraphicsTextItem that uses Arial 8pt, then text with a 'w' will be rendered incorrectly when scaling the item to more than 100%. The text "hello world" will for example be rendered as "hello w orld" with a very definite space behind the w. W is the only letter this problem occurs on, and only with Arial 8pt. Arial 9pt works, as well as other sizes.

This problem has been observed on Windows and not onLinux.