message: [stdlib]fix consensus event bug.
diff: @@ -237,10 +237,6 @@ module Consensus {
  let epoch_data = borrow_global_mut<EpochData>(CoreAddresses::GENESIS_ACCOUNT());
  if (block_height == epoch_ref.start_number) {
  epoch_data.total_reward = reward;
  - } else {
  - epoch_data.total_reward = epoch_data.total_reward + reward;
  - };
  -
  Event::emit_event(
  &mut epoch_ref.new_epoch_events,
  NewEpochEvent {
  @@ -253,6 +249,9 @@ module Consensus {
  reward_per_block: epoch_ref.reward_per_block,
  }
  );
  + } else {
  + epoch_data.total_reward = epoch_data.total_reward + reward;
  + };
  reward
  }
  