Issues with real sample

[MihaMarkic]

Using 2.3.0-alpha.39 version and a .NET Core 2.2 console app.

Below is a real sample where I want to load a page (works), await for certain div with id 33-303-tab-2 (works), click on it (works often) and finally wait for an element id 33-303-container to have a child that is not HtmlImageElement.

My problems:

1. I'm at loss what Document instance to use when. I have two Console.WriteLines where I compare references of different Document instances and all are different. Shouldn't be there a single instance?
2. When searching for 33-303-container after the Click() I find it if I use tag.OwnerDocument, but not with engine.Document.
3. Sometimes app deadlocks on tag.Click() method in EventTarget.NotifyListeners method.
4. Often code deadlocks on lock(doc);

5. I can never get to 33-303-container having not only a single Img element (the tag.Click() should inject a p node instead when done).

   class Program
   {
       static async Task Main(string[] args)
       {
           const string address = "http://www.kzs.si/clanek/Tekmovanja/Pokal-Spar/cid/72";
           var engine = new Knyaz.Optimus.Engine();
   
           engine.ScriptExecutor.Execute("text/javascript", "function escape(str){return encodeURI(str)};");
           var page = await engine.OpenUrl(address, false);
           Console.WriteLine("Waiting for root");
           var origDoc = engine.Document;
           var tag = (HtmlElement)engine.WaitId("33-303-tab-2");
           Console.WriteLine("Clicking");
           tag.Click();
           Console.WriteLine("Clicked");
           Console.WriteLine($"Documents are equal {ReferenceEquals(engine.Document, origDoc)}");
           Console.WriteLine($"Documents are equal {ReferenceEquals(engine.Document, tag.OwnerDocument)}");
           var elementFromEngine = (HtmlElement)engine.Document.WaitId("33-303-container");
           Console.WriteLine($"Awaited container from engine {!(elementFromEngine is null)}");
           var elementFromTag = (HtmlElement)tag.OwnerDocument.WaitId("33-303-container");
           Console.WriteLine($"Awaited container from tag {!(elementFromTag is null)}");
           Console.WriteLine($"State is {engine.Document.ReadyState}");
           //Console.WriteLine($"State is {engine.Document.ReadyState}");
           engine.WaitDocumentLoad();
           Console.WriteLine("Document loaded");
           for (int i = 0; i < 100; i++)
           {
               var doc = engine.Document;
               //var doc = t2.OwnerDocument;
               lock(doc)
               {
                   Console.WriteLine($"Iteration {i}");
                   var x = doc.GetElementById("33-303-container");
                   var content = doc.InnerHTML;
                   if (x.ChildNodes.Count > 0 && !(x.FirstChild is HtmlImageElement))
                   {
                       break;
                   }
               }
               await Task.Delay(TimeSpan.FromMilliseconds(100));
           }
           Console.WriteLine("Done");
       }
   }