[BUG] Objects multiplicate on chart in v3.8 when you switch symbols

Hi there,

there's a possible error in the public beta 3.8 implementation of the new object manager. It seems that when an indicator draws objects on the chart, and the objects are not set interactive, then under certain circumstances those objects may multiplicate on the chart and the original instance stays on the chart and cannot be removed. Even refreshing the chart or deleting the indicator does not help in such a case.

The bug is demonstrated by the following code. It is an indicator drawing one rectangle at a random position on the chart during its initialization.

In v 3.7, if you change the symbol and then change back to the original one, the rectangle just changes place which is an expected behavior.

In v 3.8, however, the rectangles duplicate on the chart and the original instance cannot be removed (both share the same name but the first one gets somehow orphaned). When you repeat switching symbols back and forth the rectangles keep adding up on the chart.

If you make the objects interactive, this problem does not appear as the objects are placed in the object manager and correctly assigned to their respective symbols. Only when they are not interactive the things start getting messed up

namespace cAlgo.Indicators
{
    [Indicator(IsOverlay = true, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class SymbolInfo : Indicator
    {
        protected override void Initialize()
        {
            int shift = new Random().Next(10, 200);
            Chart.DrawRectangle("TestArea", Bars.Count - shift, 0.7 * Chart.TopY + 0.3 * Chart.BottomY, Bars.Count - shift - 20, 0.7 * Chart.BottomY + 0.3 * Chart.TopY, Color.FromArgb(64, Color.IndianRed)).IsFilled = true;
        }
 
       public override void Calculate(int index)
        {
        }
    }
}