Clear VisjectSurface node caches and context menus during scripts reload

Source/Editor/Surface/BehaviorTreeSurface.cs

@@ -24,6 +24,7 @@ namespace FlaxEditor.Surface
         public BehaviorTreeSurface(IVisjectSurfaceOwner owner, Action onSave, FlaxEditor.Undo undo)
         : base(owner, onSave, undo, CreateStyle())
         {
+            ScriptsBuilder.ScriptsReloadBegin += OnScriptsReloadBegin;
         }
 
         private static SurfaceStyle CreateStyle()
@@ -35,6 +36,11 @@ namespace FlaxEditor.Surface
             return style;
         }
 
+        private void OnScriptsReloadBegin()
+        {
+            _nodesCache.Clear();
+        }
+
         private static void DrawBox(Box box)
         {
             var rect = new Rectangle(Float2.Zero, box.Size);
@@ -186,6 +192,7 @@ namespace FlaxEditor.Surface
         {
             if (IsDisposing)
                 return;
+            ScriptsBuilder.ScriptsReloadBegin -= OnScriptsReloadBegin;
             _nodesCache.Wait();
 
             base.OnDestroy();