[jdom-interest] SAXBuilder bug w.r.t internal DTD subset

[Alex Rosen]

Is there any reason to preserve the internal subset, if entities are
expanded? My thinking was that the don't-expand-entities flag was really a
preserve-round-trip flag. If you want to be able to round-trip the document,
then you want to preserve the internal subset and not expand entities.
Otherwise, if you only care about the data values, then you expand entities,
and there's no real reason to preserve the internal subset (so you might as
well not remember it, for performance reasons). Does this make any sense?

Alex