Issue #5997 has been reported by okkez _.

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Backport #5997: please backport r34033.(fix memory leak)
https://bugs.ruby-lang.org/issues/5997

Author: okkez _
Status: Open
Priority: Normal
Assignee: 
Category: core
Target version: 


r34033 ??????????????????????欲?????????????

#5688 ????????????????????????? 


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