SComboBox.setSelectedIndex(int index) doesn't work
immediately after refreshing the list in the combo box
example:
scombo.setSelector("list");
model.setList(newItems);
scombo.setSelectedItem(2);
The issue is that the ModelChangeEvent is processed in
the AWT worker thread, in parralel to the main thread,
and the main thread doesn't wait for it to finish.