range option not working for minus sign typed as “-”

[Socob]

Description

When using the range option to take the minus sign from another font, the replacement does not work when entering the minus sign as “-” (U+002D HYPHEN-MINUS) in math mode unless \minus is explicitly specified in control sequence form. Using "002D and/or "2212 alone does not work.

Check/indicate

• [x] Relevant for XeTeX
• [x] Relevant for LuaTeX
• [x] Issue tracker has been searched for similar issues?
• [x] Links to discussion if appropriate – none

Minimal example demonstrating the issue

\documentclass{article}
\usepackage{unicode-math}
\setmainfont{texgyrepagella-math.otf}
\setmathfont{latinmodern-math.otf}
\setmathfont{texgyrepagella-math.otf}[
    range={
        "002D, % -
        "2212, % −
    }
]
% The following version works!
%\setmathfont{texgyrepagella-math.otf}[
%   range={
%       "002D, % -
%       "2212, % −
%       \minus,
%   }
%]
\begin{document}
    -−

    $-−$
\end{document}

Further details

It’s a bit hard to see the difference, but here is the output:

Incorrect (1st version):

Correct (2nd version):

This is in unicode-math v0.8l, but it was working in unicode-math v0.8f.

[wspr]

Thanks, I suspect this happens for all symbols for which the input ascii is remapped to a different unicode slot (also see *).