Case sensitivity tests of CSS counters

In the tests below, a matching counter shows ABC, an unmatched counter 000 (AAA in Opera?!?).

counter(paSSfield-killroyß)
case-sensitive
lowercase
uppercase
small long s (C)
kelvin sign (C)
small sharp s (F)
capital sharp s (F)
capital sharp s (S)
fi ligature (U+fb01) (F)
dotless i (T)
dotted I (T)
counter(глупый)
lowercase
lowercase diacritic й
uppercase
uppercase diacritic Й
counter(åωk)
lowercase
uppercase
angstrom (C)
ohm (C)
kelvin (C)
counter(𐐨𐐩𐐪)
lowercase
uppercase