[issue39492] reference cycle affecting Pickler instances (Python3.8+)

[miss-islington]

miss-islington <mariatta.wijaya+miss-islington at gmail.com> added the comment:


New changeset 0f2f35e15f9fbee44ce042b724348419d8136bc5 by Pierre Glaser in branch 'master':
bpo-39492: Fix a reference cycle between reducer_override and a Pickler instance (GH-18266)
https://github.com/python/cpython/commit/0f2f35e15f9fbee44ce042b724348419d8136bc5


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nosy: +miss-islington

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