[Orgmode] Bug in LaTeX export of multiple footnote references

[Francesco Pizzolante]

Hi,

Exporting multiple references to the same footnote to LaTeX lead to a wrong
generated code.

The following example:

--8<---------------cut here---------------start------------->8---
* Title
  This is my text[fn:1:This is my footnote.]. And another one[fn:1].
--8<---------------cut here---------------end--------------->8---

Will produce the following LaTeX code:

--8<---------------cut here---------------start------------->8---
\section{Title}
\label{sec-1}

  This is my text\footnote{This is my footnote. }. And another one\$$^{1}$\$.
--8<---------------cut here---------------end--------------->8---

The correct code should be:

--8<---------------cut here---------------start------------->8---
\section{Title}
\label{sec-1}

  This is my text\footnote{This is my footnote. }. And another one$^{1}$.
--8<---------------cut here---------------end--------------->8---

Regards,
Francesco