> Issue #5347 has been reported by Tomoyuki Chikanaga.
>
> ----------------------------------------
> Backport #5347: Please backport r33307 (ref #5343)
> http://redmine.ruby-lang.org/issues/5347
>
> Author: Tomoyuki Chikanaga
> Status: Open
> Priority: High
> Assignee: Yuki Sonoda
> Category:
> Target version:
>
>
> Please backport r33307. It is fix for #5343 which is regression of 1.9.3.

Done.