message: fix CesiumViewExtension registration problem
diff: @@ -850,8 +850,6 @@ void ACesium3DTileset::LoadTileset() {
  static TSharedRef<CesiumViewExtension, ESPMode::ThreadSafe>
  cesiumViewExtension =
  GEngine->ViewExtensions->NewExtension<CesiumViewExtension>();
  - this->_cesiumViewExtension = cesiumViewExtension;
  - this->_cesiumViewExtension->RegisterTileset(this);
  if (this->_pTileset) {
  // Tileset already loaded, do nothing.
  @@ -873,6 +871,9 @@ void ACesium3DTileset::LoadTileset() {
  ACesiumCreditSystem* pCreditSystem = this->ResolveCreditSystem();
  + this->_cesiumViewExtension = cesiumViewExtension;
  + this->_cesiumViewExtension->RegisterTileset(this);
  +
  UCesiumBoundingVolumePoolComponent* pBoundingVolumePool =
  this->FindComponentByClass<UCesiumBoundingVolumePoolComponent>();
  if (this->EnableOcclusionCulling && !pBoundingVolumePool) {
  