Fixes history not updating immediately on node added

src/editor/js/components/editor.tsx

@@ -173,6 +173,7 @@ export class Editor extends React.PureComponent<propTypes, stateTypes> {
         (newNode as any).vy = 0;
 
         newNode.add(this.state.graph);
+        this.forceUpdate();
     }
 
     /**