[luatex] MWE now failing with recent TeX Live update

[Javier Bezos]

> \usepackage{polyglossia}
> \setdefaultlanguage{english}
> \setotherlanguage{latin}
> \begin{document}
> \begin{latin}
> Lorem ipsum dolor
> \end{latin}
> \end{document}
> ----------

Try:

\documentclass{article}
\usepackage[english,latin,base]{babel}
\usepackage{polyglossia}

The `base' option in babel just preloads the patterns. I'm aware
this change in babel can be somewhat annoying, since it's based
in a quite different model from the previous one (I tried hard
to provide both, but I didn't manage it).

Javier