Fix: pass a correct nodeLookup object in setDefaultNodesAndEdges()

This ensures `nodeLookup` is filled correctly at the first render of uncontrolled `ReactFlow`. (This was an issue before, but it caused severe visual issues with changes from previous commits.)

packages/react/src/store/index.ts

@@ -74,7 +74,8 @@ const createRFStore = ({
         };
 
         if (hasDefaultNodes) {
-          nextState.nodes = adoptUserProvidedNodes(nodes, new Map(), {
+          const { nodeLookup } = get();
+          nextState.nodes = adoptUserProvidedNodes(nodes, nodeLookup, {
             nodeOrigin: get().nodeOrigin,
             elevateNodesOnSelect: get().elevateNodesOnSelect,
           });