I've hit a bug that I cannot fix (no warnings/errors in the logs).
Here is a mwe:
\documentclass{article}
\usepackage[english,french]{babel}
\usepackage{breqn}
\begin{document}
\[\{A, B, C\}\]
\selectlanguage{french}
\[\{A, B, C\}\]
\selectlanguage{english}
\[\{A, B, C\}\]
\end{document}
I use the following command to compile:
$ latexmk -lualatex bug.tex
The output is as follows, the commas are mapped to a \Gamma
symbol !?
Does anyone have a clue on how to fix this ?
$ lualatex --version
This is LuaTeX, Version 1.07.0 (TeX Live 2018)
$ latexmk --version
Latexmk, John Collins, 17 Jan. 2018. Version 4.55
breqn
is a nice proof-of-concept, but it's incompatible with a wealth of packages.