`\foreignquote` does not work with `polyglossia`

[marcin-serwin]

When trying to compile this

\documentclass{article}

\usepackage[autostyle]{csquotes}

\usepackage{polyglossia}
\setmainlanguage{english}
\setotherlanguage{french}
% \usepackage[french, english]{babel} % works fine

\begin{document}
\foreignquote{french}{Ceci est en français.}
\end{document}

the error below is reported

! Extra }, or forgotten \endgroup.
<argument> ...ettextdirection:n {\l_tmpa_tl }{\group_begin: }

l.11 \foreignquote{french}{Ceci est en français.}

polyglossia version: 2022/04/20 v1.56 csquotes version: 2021-02-22 v5.2l

[marcin-serwin]

This turned out to be a problem with polyglossia: https://github.com/reutenauer/polyglossia/pull/544