German 'ß' does not work with lualatex

[jackerschott]

Running

\documentclass[10pt,twoside,twocolumn,nodeprecatedcode]{dndbook}

\usepackage[ngerman]{babel}
\usepackage[utf8]{inputenc}

\begin{document}
    \section{Groß}
    Groß.
\end{document}

with LuaLaTeX leads to the 'ß' being displayed as 'SS', like this

However, when using the book class, the 'ß' does get displayed correctly. This seems to be due to \RequirePackage[T1]{fontenc} in lib/dndfonts.sty. If I see this correctly, then fontenc has to be loaded for the bookman font to work correctly, while fontenc should not be used with LuaLaTeX.

[BrianCriswell]

Okay, looks like this will take some digging to rearrange things in the internals.