message: Fix preventing non-selected tiles from disappearing sometimes.
diff: @@ -55,7 +55,7 @@ namespace Cesium3DTiles {
  static void markChildrenNonRendered(std::unordered_map<Tile*, TileSelectionState>& lastSelectionResults, int32_t lastFrameNumber, TileSelectionState::Result lastResult, Tile& tile, ViewUpdateResult& result) {
  if (lastResult == TileSelectionState::Result::Refined) {
  for (Tile& child : tile.getChildren()) {
  - TileSelectionState::Result childLastResult = getTileLastSelectionResult(lastSelectionResults, lastFrameNumber, tile);
  + TileSelectionState::Result childLastResult = getTileLastSelectionResult(lastSelectionResults, lastFrameNumber, child);
  markTileNonRendered(childLastResult, child, result);
  markChildrenNonRendered(lastSelectionResults, lastFrameNumber, childLastResult, child, result);
  }
  