HTML does not define a disabled attribute for fieldset:
so it should not match :enabled/:disabled.
Created attachment 194464 [details] [diff] [review]
This came from bug 84400. My bad.
Testcase can be found here:
Checked in to trunk
Note that when we start implementing parts of Web Forms 2 which I believe is
planned on trunk we do want to support this.
Checked in to 1.8 branch