polyglossia + lualatex: French punctuation spacing remains enabled after \textfrench{}

[ndlecic]

Hi,

Please take a look at this example:

\documentclass{article}
\usepackage{polyglossia}
\setmainlanguage{english}
\setotherlanguage{french}
\setmainfont{CMU Serif}
\begin{document}
Lorem: ipsum; dolor sit amet? Consectetur adipiscing elit!

\textfrench{Bonjour!}

%\directlua{polyglossia.desactivate_frpt()}

Sed: do; eiusmod: tempor; incididunt? Ut! Labore!?
et dolore magna aliqua. Ut: enim ad minim veniam; quis.
\end{document}

As you can see, after \textfrench{} spaces before punctuation don't disappear. If you uncomment the \directlua line, the spaces disappear.

Since this example works with xelatex as expected, it's either polyglossia's behaviour with lualatex, or lualatex itself. If it's the later, please let me know and I'll write to luatex ml.

[ELLIOTTCABLE]

Ran into exactly this, today. Didn't realise it was a bug, spent a while banging my head against it.

https://tex.stackexchange.com/questions/389917/why-is-a-single-inline-french-quote-with-csquotes-causing-all-the-following-punc?noredirect=1#comment967897_389917