On Sun, Jul 21 2013, Paul Eggert wrote:

> If you discover that the abovementioned vfork-related patch
> triggers the bug, please feel free to revert it.  That patch
> simplifies the code and prepares for further cleanups in this
> area, but it doesn't fix any bugs itself.

No, I didn't bisect so I've no clue which patch triggers this. I'll try
to bisect eventually.

-- 
Julien Danjou
;; Free Software hacker ; freelance consultant
;; http://julien.danjou.info