[SVG] `multline` width too large inside HTML `<details>`

Steps to Reproduce:

1. MathJax demo
2. In context menu Math Settings > Math Renderer select SVG
3. Write multline environment inside HTML <details>

<details>
\begin{multline*}1\\1\end{multline*}
</details>

The second line is far out. (watch the horizontal scrollbar) 4. Inspect the svg element. It is of width 89552.372ex !

Technical details:

• MathJax Version: 3
• Client OS: Windows 11
• Browser: Firefox 108.0.1