SelectionListener is called twice on selection

[Christof Dallermassl <cdaller.hw@…>]

The DataSet SelectionChangedListener.selectionChanged is invoked twice when the user selects a node: first the selection is cleared (and the SelectionChangedListener informed) and then the selected node is added and the SelectionChangedListener is informed.

Problem is in DataSet:

public void setSelected(Collection<? extends OsmPrimitive> selection) {

clearSelection(); here the listener is informed
for (OsmPrimitive osm : selection)

osm.selected = true;

fireSelectionChanged(selection); here the listener is informed

}