setting tab positons on QTextOption leads to text overlapping if tabs are too close together or if tabs are out of order (e.g. postion 10, then position 8).

While I appreciate that Qt isn't attempting to be a word-equivalent, it is difficult meaningfully use the setTabPositions with this behaviour. Either an option such that if text extends past a tab position, that position is skipped is needed, or the default behaviour changed to better match the meaning of tab positions within other rich text systems.