Guidelines processing should show inheritance of overridden atts

[hcayless]

When an element overrides the definition of one or more attributes in a class which is a member of a class of which the element is a member, it should still show on the spec page that it is a member of that bottom level class. Example: <media> is a member of att.media, from which it inherits att.internetMedia/@mimetype; it overrides this, which somehow causes the list of classes in the Spec page to include att.media but not att.internetMedia.

See TEIC/TEI#1328

[sydb]

@hcayless — Can you confirm that this is still a problem? (My quick glance says yes.) Can you confirm whether this “only occurs if there is a single attribute in the nested class”? (I don’t really know what that means.)