[O] org-edit-special doesn't work within #+BEGIN_LaTeX blocks anymore

[Julien Cubizolles]

It used to work, but the latest from git gives
--8<---------------cut here---------------start------------->8---
user-error: No special environment to edit here
--8<---------------cut here---------------end--------------->8---
It was very convenient to use auctex from within an org file using a lot
of LaTeX formulas. Is there a reason to change this behaviour ?

Julien.