The section “2.1.3.4.3.3 Processing key
references”, mentions:
“The attributes that are common to a key definition element and a key
reference element using that key, other than the @keys and @id attributes, are
combined as for content references, including……..”
As I understand, I see concerns for other attributes that
will get combined/derived. Like if @href is derived from the key defining
element, then the fallback target of the topicref shall be lost… or in
other words the @href mentioned in key defining element shall get used as the
fallback in all the topicrefs referring to that key.
Regards,
Tarun Garg