Source maps are broken

[StefanoBalzarottiNozomi]

I just cloned repository from main.

Inside example project do, npm run serve

Open any component

With Firefox you'll see something like this:

On Chrome Or Opera, I think any Blink based browsers, sources are likely duplicated, one appears correct and the other one broken:

The broken one

This seems correct, but breakpoints and inspection is not working as expected.