figgroup: whither <data>?

This looks like an oversight...

The content model for figgroup is just
enough to allow for the one specialization of it that DITA ships with:
syntax diagrams.

<!ELEMENT figgroup    
 ((%title;)?,

           
             (%figgroup; | %xref; |
%fn; | %ph; |

           
              %keyword;)* )    
                     
   >

Conspicuously missing from that list
are state, term, data and foreign (perhaps also boolean, indexterm and
foreign).  Granted, these could be wrapped in a ph, but the extra
level of wrapping isn't always sensible in the context of a specialization.

I'd like to see at least the four basic
elements state, term, data and foreign included into figgroup's content
model, befitting its role as a base for specializations.

-- 

Deborah Pickett