Issue #7991 has been reported by hsbt (Hiroshi SHIBATA).

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Backport #7991: backport r39542
https://bugs.ruby-lang.org/issues/7991

Author: hsbt (Hiroshi SHIBATA)
Status: Open
Priority: High
Assignee: nagachika (Tomoyuki Chikanaga)
Category: 
Target version: 


https://github.com/ruby/ruby/pull/252


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