[issue40998] Compiler warnings in ubsan builds

[miss-islington]

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


New changeset 35bf8ea7bef7151a420a67638e88d6a1fd81d1a0 by Christian Heimes in branch '3.9':
[3.9] bpo-40998: Fix a refleak in create_filter() (GH-23365) (GH-23369)
https://github.com/python/cpython/commit/35bf8ea7bef7151a420a67638e88d6a1fd81d1a0


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<https://bugs.python.org/issue40998>
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