[O] Bug: export failed when using footnotes inside src blocks [7.7]

[Günter Kolousek]

Hi, using footnotes i.e. [2] inside #+begin_src #+end_src causes errors
during export using orgmode 7.7 and tip.

Günter

#+LaTeX_CLASS: beamer
#+LaTeX_CLASS_OPTIONS: [presentation]
#+BEAMER_FRAME_LEVEL: 2
#+BEAMER_HEADER_EXTRA: 
\usetheme{boxes}\addheadbox{structure}{\tiny\quad\insertsection\qquad\insertsubsection\hfill\insertpagenumber\quad}\useinnertheme{rectangles}\usecolortheme[RGB={0,118,190}]{structure}\usefonttheme{structurebold}
#+COLUMNS: %35ITEM %10BEAMER_env(Env) %10BEAMER_envargs(Args) %4BEAMER_col(Col) 
%8BEAMER_extra(Ex)
#+LANGUAGE: de
#+OPTIONS:   H:1 num:t toc:t \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t
#+OPTIONS:   TeX:t LaTeX:t skip:nil d:nil todo:t pri:nil tags:not-in-toc

#+LATEX_HEADER: \setbeamertemplate{navigation symbols}{}
#+LATEX_HEADER: \usepackage{palatino}
#+LATEX_HEADER: \usepackage{xspace}
#+LATEX_HEADER: \usepackage[ngerman]{babel}

\shorthandoff{"}

* Test
  foo
  #+begin_src python
  lst = [-1, -2, 2, -3, -4]

  for x in lst[:]:
      if x < 0:
          lst.remove(x)

  print(lst) # [2] <- does not work!
  #+end_src

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