[O] ox: html: Wrong type argument: stringp, (latex-fragment

[Yasushi SHOJI]

Hi all,

With Org-mode version 8.3.2 (release_8.3.2-380-g64aee4),
org-html-export-to-html does not work with this ECM if
org-export-with-sub-superscripts is set to nil.

#+BEGIN_SRC org
  \_\A
#+END_SRC

Does anyone have seen this?
-- 
             yashi