message: missing occlusion history should not be treated as NotOccluded
diff: @@ -46,12 +46,12 @@ TileOcclusionState CesiumViewExtension::getPrimitiveOcclusionState(
  }
  }
  - if (!isOccluded) {
  - return TileOcclusionState::NotOccluded;
  - } else if (historyMissing) {
  + if (historyMissing) {
  return TileOcclusionState::OcclusionUnavailable;
  - } else {
  + } else if (isOccluded) {
  return TileOcclusionState::Occluded;
  + } else {
  + return TileOcclusionState::NotOccluded;
  }
  }
  