v4-beta.3, TeX, SVG: multline generating unexpected rect

[pkra]

Using https://cdn.jsdelivr.net/npm/mathjax@4.0.0-beta.3/tex-mml-svg.js.

E.g., \begin{multline} mult \\ line \end{multline}

adds a rect element, effectively adding a solid border around the whole expression

[dpvc]

I have made a PR that fixes this.

[pkra]

I've tested the patch - thank you!