The wiki is defaced when trying to use a Google Fonts 2022 import in the color theme - less compilation error

How to reproduce:

• customize the current theme that is used on the wiki
• add the following code (copied from Google Fonts june 2022 version) in the advanced section of this color theme (copied from https://fonts.google.com/specimen/Fascinate ):

  @import url('https://fonts.googleapis.com/css2?family=Fascinate&display=swap');
  

• save

Expected result:

• the wiki displays properly and the font is ready to use

Actual result:

• the wiki is defaced, no css at all is applied

Note: this does not apply to all the imports and doesn't apply to all the imports of google fonts.
For example, the standard Paper flamingo theme is using an import of a google font, like this:

@import url("https://fonts.googleapis.com/css?family=Roboto:300,400,500,700");

and works perfectly fine.

Since the 2 imports are different, I think Google Fonts may have changed their font URLs and this new code creates a specific problem to the less compiler.

What is particularily tricky with this is that the preview of the color theme looks fine:

so if one is not saving and viewing, they will never see the problem.