Fixed ports duplicated after undo

Author: alelievr

Assets/com.alelievr.NodeGraphProcessor/Editor/Views/BaseGraphView.cs

@@ -682,7 +682,7 @@ void ReloadView()
 				if (e is BaseNodeView v && this.Contains(v))
 					selectedNodeGUIDs.Add(v.nodeTarget.GUID);
 			}
-	
+
 			// Remove everything
 			RemoveNodeViews();
 			RemoveEdges();

Assets/com.alelievr.NodeGraphProcessor/Runtime/Elements/BaseNode.cs

@@ -249,6 +249,8 @@ public virtual void InitializePorts()
 		{
 			InitializeCustomPortTypeMethods();
 
+			inputPorts.Clear();
+			outputPorts.Clear();
 			foreach (var key in OverrideFieldOrder(nodeFields.Values.Select(k => k.info)))
 			{
 				var nodeField = nodeFields[key.Name];

CHANGELOG.md

@@ -11,6 +11,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Added an example with Waitable and async nodes
 - Added drag and drop support for assets and scene objects directly into a graph
 
+### Fixed
+- Fixed ports duplicated after undo
+
 ## [1.0.1]
 
 ### Added