From: Eric Wong <normalperson@...>
Date: 2014-01-25T02:56:37+00:00
Subject: [ruby-core:60083] Re: [ruby-trunk - Bug #9448] [Rejected] Assignment with overridden []= returns return value of method rather than new value

nobu@ruby-lang.org wrote:
> Status changed from Open to Rejected
> 
> It's a spec.
> An assignment returns the assigned value, not the value returned by the method.

I think you misread, he is saying assignment returns the value returned
by the method in trunk.  It looks like trunk is violating spec.
I think it is r44551, opt_aset_str causing the bug.  Fix coming.