[O] Bug: ^:{} option, underscore in inline task, latex export

[mylesenglish]

Hello,

If an underscore appears in an inline task then there are problems for
latex export, as below.

Myles



#+TITLE: Underscore bug
#+OPTIONS:   ^:{}


* This works as expected

Here is an under_score that is escaped upon latex export

*************** TODO Fix buggy_bug
                That one makes it through to the .tex file
*************** END

* LaTeX export results in:                                         :noexport:

\section{This works as expected}
\label{sec-1}


Here is an under\_{}score that is escaped upon latex export

\begin{description}
\item[\textsc{TODO} Fix buggy_bug]~

That one makes it through to the .tex file

\end{description}