MathJax 4: Increased spacing for \textbf inside \boldsymbol #3514
Description
After upgrading from version 3 to 4, the spacing in \textbf inside \boldsymbol appears to have doubled (\boldsymbol{\pi\textbf{ rad}}).
Expected the spacing to be the same as version 3.
MathJax 3:
MathJax 4:
Reproduction
<!DOCTYPE html>
<html>
<head>
<!-- MathJax 3 -->
<!-- <script src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-svg.js"></script>-->
<!-- MathJax 4 -->
<script src="https://cdn.jsdelivr.net/npm/mathjax@4/tex-mml-chtml.js"></script>
</head>
<body>
\begin{aligned}
\theta &= \pi\text{ rad} \\[1pt]
\theta &= \boldsymbol{\pi\textbf{ rad}} \\[1pt]
\end{aligned}
</body>
</html>