Update on TreeList causes loss of selection

Hey guys,

happy new year to all. I hope you're doing fine.

We recently came across a small problem with TreeList.
The following test case fails (the last assertion).
An EventSelectionModel based on a TreeList looses
its selection when an update happens on the selected element
in the source list.
Looks like a bug to me or what do you think?

Thanks,
Holger

----
public class TreeListTestCase extends SwingTestCase {

    public void guiTestTreeListSelection() {
        final EventList<String> source = new BasicEventList<String>();
        source.add("zero");
        source.add("one");
        source.add("two");
        source.add("three");

        final EventList<String> sourceProxy = GlazedListsSwing.swingThreadProxyList(source);
        final TreeList<String> treeList = new TreeList<String>(sourceProxy, new StringFormat(),
                TreeList.NODES_START_EXPANDED);
        final EventSelectionModel<String> selModel = new EventSelectionModel<String>(treeList);
        selModel.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        selModel.setSelectionInterval(2, 2);
        assertEquals(Arrays.asList("two"), selModel.getSelected());
        source.set(2, source.get(2));
        assertEquals(Arrays.asList("two"), selModel.getSelected());
    }

    private static class StringFormat implements TreeList.Format<String> {
        public boolean allowsChildren(String element) {
            return element.equals("zero");
        }
        public Comparator<? extends String> getComparator(int depth) {
            return null;
        }
        public void getPath(List<String> path, String element) {
             if (!element.equals("zero")) {
                 getPath(path, "zero");
             }
             path.add(element);
        }
    }
}

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