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Title: gh-104190: fix ubsan crash by sunmy2019 · Pull Request #104191 · python/cpython · GitHub

Open Graph Title: gh-104190: fix ubsan crash by sunmy2019 · Pull Request #104191 · python/cpython

X Title: gh-104190: fix ubsan crash by sunmy2019 · Pull Request #104191 · python/cpython

Description: Issue: usan failure on main #104190

Open Graph Description: Issue: usan failure on main #104190

X Description: Issue: usan failure on main #104190

Opengraph URL: https://github.com/python/cpython/pull/104191

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