Improve initial state transfer locking

Ooui/UI.cs

@@ -573,34 +573,40 @@ namespace Ooui
             void QueueStateMessagesLocked (EventTarget target)
             {
                 if (target == null) return;
+                var created = false;
                 foreach (var m in target.StateMessages) {
+                    if (m.MessageType == MessageType.Create) {
+                        createdIds.Add (m.TargetId);
+                        created = true;
+                    }
+                    if (created) {
                         QueueMessageLocked (m);
                     }
                 }
+            }
 
             void QueueMessageLocked (Message message)
             {
                 //
                 // Make sure all the referenced objects have been created
                 //
-                if (message.MessageType == MessageType.Create) {
-                    createdIds.Add (message.TargetId);
-                }
-                else {
                 if (!createdIds.Contains (message.TargetId)) {
-                        createdIds.Add (message.TargetId);
                     QueueStateMessagesLocked (element.GetElementById (message.TargetId));
                 }
-                    if (message.Value is Array a) {
+                if (message.Value is EventTarget ve) {
+                    if (!createdIds.Contains (ve.Id)) {
+                        QueueStateMessagesLocked (ve);
+                    }
+                }
+                else if (message.Value is Array a) {
                     for (var i = 0; i < a.Length; i++) {
                         // Console.WriteLine ($"A{i} = {a.GetValue(i)}");
                         if (a.GetValue (i) is EventTarget e && !createdIds.Contains (e.Id)) {
-                                createdIds.Add (e.Id);
                             QueueStateMessagesLocked (e);
                         }
                     }
                 }
-                }
+
                 //
                 // Add it to the queue
                 //