On Sat, Jul 23, 2016 at 12:23 AM Noam Postavsky <npostavs@users.sourceforge.net> wrote:
It's currently not implemented, see
http://debbugs.gnu.org/cgi/bugreport.cgi?bug=5439

Thanks for that info, Noam. 

Also, as Eli mentioned in one of the debbugs threads, the only workaround for this,for now, is to subscribe to the emacs bugs list. But then that will make me subscribe to *all* bugs. 
--

Kaushal Modi