I've applied Katsumi's fix to MH-E and have been using it for a while
now. I haven't noticed any difference.

Please consider the following short patch and recommend whether I should
1) apply it to emacs-25, 2) apply it to master, or 3) apply it to master
with a note to apply it to emacs-25 after the release. If 3), please
suggest specific text that catches your attention.

-- 
Bill Wohler <wohler@newt.com> aka <Bill.Wohler@nasa.gov>
http://www.newt.com/wohler/
GnuPG ID:610BD9AD