% The [12pt] optional parameter to \documentclass seems to be necessary to  trigger the bug
\documentclass[12pt]{article}

\begin{document}

% The problem does not show up with hyphens signs in regular text mode
3-2 \\
% but it does show up for en-dash rendered in regular text mode mode
3--2 \\
% and for minus signs rendered in inline-math mode
$3-2$
% or display-math mode
\[
3 - 2
\]

\end{document}
