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gh-141805: Fix crash after concurrent addition objects with the same hash to set #143815

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@serhiy-storchaka serhiy-storchaka commented Jan 13, 2026 •
edited by bedevere-app bot
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This happens when the set contained several elements with the same hash, and then some of them were removed.

 

... same hash to set
This happens when the set contained several elements with the same hash,
and then some of them were removed.
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I think this also fixes #143546. (N.B.: on my system I can't trigger a crash with left &= right from issue, but left |= right - "works" for me.)
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