Adding a comma to section-title swallows the space after it

[szotsaki]

Info

• Operating System: Linux
• Node Version: 16.4.1
• Browser Name and Version: Vivaldi

Type

• bug
• feature request

For Bugs

How can we reproduce the behavior?

1. Have a slide with <!-- section-title: ... --> of at least two words in it (e.g. Hello world from Fusuma!)
2. Put a comma before a word (e.g. Hello, world from Fusuma!)
3. Start Fusuma in your browser

Expected Behavior

Space is retained after comma

Actual Behavior

Space is removed after comma:

<a style="cursor: pointer;">Hello,world from Fusuma!</a>