biblatex option autolang=other does not work

[dcpurton]

When using the biblatex option autolang=other, all entries end up in English regardless of what the default language document language.

MWE

\documentclass{article}
\usepackage[english,american,ngerman]{babel}
\usepackage{csquotes}
\usepackage[style=sbl,autolang=other]{biblatex}
\addbibresource{biblatex-examples.bib}
\begin{document}
\null\vfill
Filler text \autocite{westfahl:space}.
Filler text \autocite{aksin}.
\printbibliography
\end{document}

[dcpurton]

This is an issue with biblatex. See https://github.com/plk/biblatex/issues/903

[dcpurton]

Because biblatex-sbl automatically calls language=american to make sure american.lbx is loaded even when babel is not, this problem crops up. This might be a bit surprising if someone wants to change the autolang option, so probably needs to be mentioned in the manual.