HTML :enable and :disabled are not quite conformant #6
Description
These should match :enabled, but currently do not:
li elements that are children of menu elements, and that have a child element that defines a command, if the first such element's Disabled State facet is false (not disabled)
(Similarly for :disabled with Disabled State facet is true (disabled))
Form elements should be considered disabled
... if its disabled attribute is set, or if it is a descendant of a fieldset element whose disabled attribute is set and is not a descendant of that fieldset element's first legend element child, if any.
The last part was skipped, so the current implementation is:
... if its disabled attribute is set, or if it is a descendant of a fieldset element whose disabled attribute is set