[issue36470] dataclasses replace raises an exception with an empty

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[issue36470] dataclasses replace raises an exception with an empty

New submission from Greg Kuhn : I have a snippet below which runs fine on python 3.7.0 but raises a ValueError exception on 3.7.1. I believe it's related to https://bugs.python.org/issue33805. The error: c:\python\lib\dataclasses.py:1219: ValueError The script: from dataclasses import repla