I have just filed this bug:

	16495: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16495

I hope this helps.

On 19 Jan 2014, at 14:46, Stefan Monnier <monnier@iro.umontreal.ca> wrote:

>> Regarding the mumamo issues, I will try to contact the people maintaining
>> that package, which as far as I know, is outside of emacs.
> 
> Please make an Emacs bug report for it as well.  Maybe the problem is on
> mumamo's side, but maybe it's on Emacs's side (and maybe it's both or
> neither, of course).
> 
>> That is why I figured it would not be something that was necessarily
>> fixed before the next release.
> 
> I'd better try and find out what's the problem soon, so we can decide if
> it has to be fixed before 24.4 is released.
> 
> 
>        Stefan