Can't delete polygon from MapViewer

[haulmont-git]

When I trying delete programmaticaly polygon overlay (i.e. if polygon is not valid) from MapViewer using method MapViewer#removePolygonOverlay nothing changes.

For example a piece of code

private PolygonCompleteListener polygonComplete = event -> {
        PolygonDelegate pd = (PolygonDelegate) event.getPolygon();
        if (!mvHelper.isValid(pd)) {
            showNotification(
                    "Polygon draw warning",
                    "Polygon topology incorrect. Discard drawing",
                    NotificationType.ERROR
            );

            mvZoneMap.removePolygonOverlay(event.getPolygon());

       }
}

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Original issue: https://youtrack.haulmont.com/issue/PL-8246