\setmathfont option range=\mathalpha fails for upshape

[jiaopjie]

When switch math font with the option range=\mathalpha, the upshape fails to switch but other shapes succeeds.

% !TeX program = xelatex
\documentclass{article}
\usepackage{unicode-math}
\setmathfont{TeX Gyre Schola Math}
\def\mathtest{
  \(
    \begin{array}{l}
      \symup{ABCDEFGHIJKLMNOPQRSTUVWXYZ} \\
      \symit{ABCDEFGHIJKLMNOPQRSTUVWXYZ} \\
      \symbf{ABCDEFGHIJKLMNOPQRSTUVWXYZ} \\
    \end{array}
  \)
}
\begin{document}
\raggedright
\mathtest
\setmathfont{XITS Math}[range={\mathalpha}]
\mathtest
\end{document}

The result:

It is similar to issue #649

[ponte-vecchio]

\mathalpha is not the correct label for range (see Section 4.1.1 of the documentation for the labels).

Replacing range={\mathalpha} for range=up/{Latin} (only used Latin as only uppercase Latin letters are used in the test) shows the desired result as follows: