Fixed crash on closing Map viewer caused by pointer events firing after disposal
Layers panel: Fixed page freeze when toggling layer visibility (e.g. Markers GL) — caused by exponential re-subscription of onCurrentCellChanged on every layers list refresh
KML/KMZ: Fixed SyntaxError: Unexpected end of JSON input in GisAreaGridCellRenderer when the gisObject cell is empty (style-only KML rows or unsupported geometries)