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