Issue:
Do we treat this as a request for enhancement in DITA 1.3 or a bug fix in 1.2? If the latter, we should probably check for other elements that the original proposal omitted. I wonder how common this use case (and others similar to it) would be in the year or two it's likely to take between now and our subsequent spec release (1.3 or 2.0, whatever it ends up being)... /Gershon