[O] [ox/ox-latex] Footnotes in titles

[Rasmus]

Hi,

Consider the following example

    #+TITLE: [ox-latex, bug] footnotes in titles[fn:1]
    #+AUTHOR: Rasmus[fn:2]

    [fn:1] I'd like to thank Nicolas for considering this bug
    [fn:2] spammer of the org mailing list

The desired ox-latex output is something like:

    \author{Rasmus\thanks{spammer of the org mailing list}}
    \title{[ox-latex, bug] footnotes in titles%
      \thanks{I'd like to thank Nicolas for considering this bug}}

But actual output is something like:

    \author{Rasmus\footnotemark[nil]{}}
    \date{\today}
    \title{[ox-latex, bug] footnotes in titles\footnotemark[nil]{}}

It's not too bad: ox-html breaks on this document.

I guess it's a limitation of org-element, since 

    (org-element-map (org-element-parse-buffer) 'footnote-reference
                     (lambda (fn) (org-element-property :label fn)))
    => ("fn:2")                 

Footnote in titles are often used for acknowledgments.
Footnote for authors are sometimes for associations.

Is the current treatment the desired treatment?

Thanks,
Rasmus

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