Eli Zaretskii <eliz@gnu.org> writes:
>> From: Spencer Baugh <sbaugh@janestreet.com>
>> BTW, the patch I posted has the wrong commit message but is otherwise
>> correct.  Assuming there's review feedback, I'll correct the commit
>> message in the next version.
>
> Please do submit a correct patch, so we could resolve this regression.
>
> Thanks.

Here is the version with a correct commit message.  (I also added some
comments in the test)