Description
My class defines math option as choice key with \DeclareKeys command, but latest fontspec package doesn't like it and throws an error.
! LaTeX Error: Key 'fontspec/math' accepts boolean values only.
Check/indicate
Minimal example demonstrating the issue
\documentclass[math=many]{randexam}
\usepackage{fontspec}
\begin{document}
Test
\end{document}