[luatex] TL2014, realsuperscript, Linux Libertine O

[Daniel Flipo]

Hi all,

I stumble upon a new ``feature'' with TL2014 when compiling the 
following file in LuaLaTeX:
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\documentclass{article}
\usepackage{fontspec}
\usepackage{realscripts}
\setmainfont{Linux Libertine O}
%\setmainfont{Iwona}
\begin{document}
\showoutput
X\realsuperscript{123abc}X\par
X\realsubscript{123abc}X\par
\end{document}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

The \realsuperscript command prints no superscript;
-- it did with TL2013 (checked today, I kept the latest TL2013 ;-),
-- it does also with font "Iwona" instead of "Linux Libertine O",
-- it does also with font "Linux Libertine O" when compiled with XeLaTeX.
-- Strange is that \realsubscript works fine anytime…

Best wishes,
--
Daniel Flipo