spaces in css link URI bug in validator?

Hello,

Today I stumbled upon, what I believe to be, a bug in the CSS validator.

After checking a complete webpage thru an URI (
http://acceptatie.www.franekeradeel.nl/bestuur en organisatie) the 
validator concludes that there is an error in a specific CSS file (
http://acceptatie.www.franekeradeel.nl/nl/brein/inproces/website/themas/franekeradeel/css/bestuur 
en organisatie.css). 

The error shown is: Parse Error Lexical error at line 1, column 3. 
Encountered: "D" (68), after : "<!"

However, if I check only that specific CSS file thru an URI, the validator 
confirms that it is valid CSS. Some of my webpages have this problem, some 
don't. After some testing I've reached the conclusion that it is probably 
caused by the use of a space in the link href.

I would appreciate it if you could classify this problem as a bug and 
solve it in a future release. If the cause is indeed the use of a space in 
the href, a confirmation of that would be greatly appreciated. 

Kind regards.
Liza Top
Consultant
BREIN BV
Postbus 210
7480 AE HAAKSBERGEN

T : +31 (053) 574 1686  |  E : l.top@brein.nl  |  W : www.brein.nl