[issue1433] marshal roundtripping for unicode

[Marc-Andre Lemburg]

Marc-Andre Lemburg added the comment:

I think you have a wrong understanding of round-tripping. 

In Unicode it is really irrelevant if you're using a UCS2 surrogate pair
or a UCS4 representation to describe a code point. The length of the
Unicode representation may change, but the meaning won't, so you don't
lose any information.

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nosy: +lemburg

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