Changes of description item parameter is not handled correctly

[andregirard]

A MWE. This is processes with revision

This is LATEXDIFF 1.2.2a (Algorithm::Diff 1.1903, Perl v5.22.1)
(c) 2004-2017 F J Tilmann

new file

\begin{document}
\begin{description}
\item[D] Item D in the new file
\end{description}
\end{document}

old file

\begin{document}
\begin{description}
\item[C] Item C in the old file
\end{description}
\end{document}

yields
diff.pdf

[ftilmann]

Fixed in commit a83c418