Comment 20 for bug 373083

Please see my initial posting in this bug and also my patch. There's no single word stating CTE=8bit should only be preserved in some cases. Automated processing was just one of the examples, high spam scores for base64 and unnecessary mail growing were others. That list is not exhaustive of course.

CTE=8bit states the part is 8bit. No less, no more. There's absolutely no reason to replace it with QP or Base64 when you change charset.

Once more, I posted yesterday the proper fix for Mark's concern (elif cte=='8bit':) so I really fail to understand why you're still trying to push suboptimal solutions which don't fully resolve the problem.