[issue42889] Incorrect behavior after ast node visits

[Xinmeng Xia]

Xinmeng Xia <xiaxm at smail.nju.edu.cn> added the comment:

This crash cannot be reproduced again on the master branch of CPython.  It seems that this bug has been fixed. Should we close this issue and mark it as "fixed"?

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<https://bugs.python.org/issue42889>
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