css validator breaks html validation

Hi all,

I came across a "bug" while validating a newly built website of mine. It
concerns the validation link you get after sucessfully validating your css,
to put it into your w3c css validation icons. All the special characters in
that validation link are percent-escaped, exept for the ampersands. Those
not-escaped ampersands break your html validation.

I suggest the css validator is adapted accoringly and outputs %amp;
-escaped ampersands.

To reproduce the issue, I left a broken copy on the server as well:

http://validator.w3.org/check?uri=http%3A%2F%2Fristorante-mamma-mia.de%2Fbroken_validation%2F&charset=%28detect+automatically%29&doctype=HTML5&group=0&user-agent=W3C_Validator%2F1.3+http%3A%2F%2Fvalidator.w3.org%2Fservices


Cheers
Axel