[issue20639] pathlib.PurePath.with_suffix() does not allow removing the suffix

[Roundup Robot]

Roundup Robot added the comment:

New changeset 0d84855861ff by Antoine Pitrou in branch '3.4':
Issue #20639: calling Path.with_suffix('') allows removing the suffix again.
http://hg.python.org/cpython/rev/0d84855861ff

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nosy: +python-dev

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<http://bugs.python.org/issue20639>
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