Morpho

Metadisplay
Clicking on the Data Table column headers causes the metadisplay to show the
correct metadata, but clicking a couple of column headers and then clicking the
"back" button in metadisplay causes an index out of bounds exception, and the
debug message: "Can't handle multiple column selections yet!!"

In DataViewContainerPanel line 667, this returns null sometimes:

String selectedAttribs
    = container.getMetaDisplayInterface().getTransformerProperty(
                              XMLTransformer.SELECTED_ATTRIBS_XSLPROP);

...so I'm guessing that the history stack/transformer properties are not being
managed properly in metadisplay, since the "SELECTED_ATTRIBS_XSLPROP" seems to
be getting corrupted/lost?