private void OnModificableGraphCleared(object sender, GraphEventArgs e)
{
SpinWrappedGraph graph = (SpinWrappedGraph)e.Graph;
graph.Reset();
IUriNode sourceGraph = RDFUtil.CreateUriNode(graph.BaseUri);
IUriNode graphNode = RDFUtil.CreateUriNode(GetUpdateControlUri(graph.BaseUri));
this.Retract(graphNode, RDFRuntime.PropertyUpdatesGraph, sourceGraph);
this.Assert(graphNode, RDFRuntime.PropertyReplacesGraph, sourceGraph);
}
