Font-locking lost when using some local variables

[Julien Cubizolles]

With the latest git version of org, all face specifications are lost in
the following org file after the dialog asking about the unsafe
buffer-auto-save-file-name local variable is answered. Previous versions
of org handled it without any problem.

--8<---------------cut here---------------start------------->8---
# -*- buffer-auto-save-file-name: nil -*-
* Test
** Hello
--8<---------------cut here---------------end--------------->8---


-- 
Julien Cubizolles