[issue23247] Crash in the reset() method of StreamWriter of CJK codecs

[Martin Panter]

Martin Panter added the comment:

Aaron: Your version of the fix immediately returns None, while Victor’s tries to encode an empty string (if I understand it correctly). I imagine this shortcut could be slightly more efficient, but is it always correct?

In any case, Aaron’s test looks okay to me.

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stage: test needed -> patch review

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<http://bugs.python.org/issue23247>
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