Fixed enable using graph in BaseNodes

Author: alelievr

Assets/Examples/DefaultNodes/Nodes/ParameterNode.cs

@@ -21,6 +21,7 @@ protected override void Enable()
 
 	void UpdateOutput()
 	{
+		Debug.Log("graph: " + graph);
 		var param = graph.exposedParameters.FirstOrDefault(e => e.name == propertyName);
 
 		if (param == null)

Assets/NodeGraphProcessor/Runtime/Elements/BaseNode.cs

@@ -77,14 +77,14 @@ public static BaseNode CreateFromType(Type nodeType, Vector2 position)
 		public void Initialize(BaseGraph graph)
 		{
 			this.graph = graph;
+
+			Enable();
 		}
 
 		protected BaseNode()
 		{
 			InitializeInOutDatas();
 
-			Enable();
-
 			inputPorts = new NodeInputPortContainer(this);
 			outputPorts = new NodeOutputPortContainer(this);