message: Respond to all when fetching a block.
diff: @@ -295,7 +295,7 @@ impl ItemFetcher<Deploy> for Fetcher<Deploy> {
  }
  impl ItemFetcher<Block> for Fetcher<Block> {
  - const SAFE_TO_RESPOND_TO_ALL: bool = false;
  + const SAFE_TO_RESPOND_TO_ALL: bool = true;
  fn responders(
  &mut self,
  