`autolang=hyphen` plus `related` not working
I cannot use autolang=hyphen together with related under biber version: 2.20.
M(n)WE:
\documentclass{article}
\usepackage{polyglossia}
\setdefaultlanguage{english}
\setotherlanguage{german}
\usepackage[autolang=hyphen]{biblatex}
\begin{filecontents}{\jobname.bib}
@Book{GermanOriginal,
title = {German Original},
langid = {german},
related = {EnglishTranslation},
}
@Book{EnglishTranslation,
title = {English Translation}
}
\end{filecontents}
\addbibresource{\jobname.bib}
\begin{document}
\nocite{*}
\printbibliography
\end{document}
Errors:
debug.tex:26: LaTeX Error: \begin{document} ended by \end{hyphenrules}.
See the LaTeX manual or LaTeX Companion for explanation.
Type H <return> for immediate help.
...
l.26 \end
{document}
debug.tex:26: Undefined control sequence.
\blx@break #1&->\blx@done
\undef \blx@do \undef \blx@done
l.26 \end
{document}
Thank you very much for reporting this.
I haven't quite figured out what exactly is wrong here, but the problematic commit is quite definitely https://github.com/plk/biblatex/commit/134da03fd355bf342cb919940fbc16267fe7651f.
This actually revealed a bug that's been with us quite a bit longer than https://github.com/plk/biblatex/commit/134da03fd355bf342cb919940fbc16267fe7651f. The definition of \blx@endlang was not always correct when no language switching needed to be done. That should be fixed in https://github.com/plk/biblatex/commit/533b1ee6ab1d7b1b61d830125ebad6375204cf81.
@plk We probably need a biblatex-only release of 3.20a soon, because I'm guessing this issue will pop up in other contexts as well.
The language code uses a lot of \lets and I'm wondering if we can simplify stuff a bit if we just use \defs. I'll investigate...
That's fine @moewew - just tell me when ...
Will do. I'm currently hoping we might include the fixes/whatever we need for https://github.com/plk/biblatex/issues/1348 as well, if I can figure out what to do about it soon-ish.