message: Fix crash when calling enableFallback/Slideshow below min layer
diff: @@ -1086,7 +1086,9 @@ void MediaStream::setQualityLayer(int spatial_layer, int temporal_layer) {
  void MediaStream::enableSlideShowBelowSpatialLayer(bool enabled, int spatial_layer) {
  asyncTask([enabled, spatial_layer] (std::shared_ptr<MediaStream> media_stream) {
  + if (media_stream->isRunning()) {
  media_stream->quality_manager_->enableSlideShowBelowSpatialLayer(enabled, spatial_layer);
  + }
  });
  }
  @@ -1104,7 +1106,9 @@ void MediaStream::addHandlerInPosition(Positions position,
  void MediaStream::enableFallbackBelowMinLayer(bool enabled) {
  asyncTask([enabled] (std::shared_ptr<MediaStream> media_stream) {
  + if (media_stream->isRunning()) {
  media_stream->quality_manager_->enableFallbackBelowMinLayer(enabled);
  + }
  });
  }
  