[3.12] gh-129407: Clarify that a `SystemError` isn't always CPython's fault (GH-129410)#129611

vstinner merged 1 commit intopython:3.12python/cpython:3.12from

miss-islington:backport-39b754a-3.12miss-islington/cpython:backport-39b754a-3.12Copy head branch name to clipboard