[issue21331] Reversing an encoding with unicode-escape returns a different result

[Marc-Andre Lemburg]

Marc-Andre Lemburg added the comment:

The unicode-escape codec was used in Python 2 to convert Unicode literals in source code to Unicode objects. Before PEP 263, Unicode literals in source code were interpreted as Latin-1. See http://legacy.python.org/dev/peps/pep-0263/ for details.

The implementation is correct, but doesn't necessarily match today's realities anymore.

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