[O] org-babel source code :fonts serif not working

[Vikas Rawal]

The following code does not produce image with serif fonts for me. It used to 
work earlier but it seems the behaviour has changed. Could anyone confirm.

#+BEGIN_SRC R :results output graphics :exports results :file filename.png 
:width 1200 :height 700 :fonts serif
 <<R code here to produce a graph>>
#+END_SRC

Org-version: Org-mode version 8.3beta (release_8.3beta-688-g44744b @ 
/Users/vikas/.emacs.d/src/org-mode/lisp/)


Vikas