Redux mapStateToProps不会触发对象的键渲染

Question

我的应用包含多个对话，每个对话都没有我自己的消息。

聊天屏幕

const mapStateToProps = (state: any) => {
  return {chatMessages: state.chatMessages.messageByConversationId[state.chatMessages.conversationId]};
}

减少邮件加载量：

export const subscribeChatMessagesSuccess: Reducer<ImmutableChatMessagesState> = (
  state: ImmutableChatMessagesState,
  { payload }: AnyAction & { payload?: SubscribeChatMessagesSuccessParams }) =>
  payload
    ? {
      ...state,
      requesting: false,
      messageByConversationId: {
        ...state.messageByConversationId,
        [payload.conversationId]: payload.chatMessages
        ,
      },
    }
    : state;

这很好用！放置消息时，屏幕触发器将重新呈现。

当我尝试添加ChatMessage时，问题开始了：

export const addChatMessage: Reducer<ImmutableChatMessagesState> = (
  state: ImmutableChatMessagesState,
  { payload }: AnyAction & { payload?: AddChatMessageParams }) => {
  return payload
    ? {
      ...state,
      messageByConversationId: {
        ...state.messageByConversationId,
        [payload.conversationId]: [...state.messageByConversationId[payload.conversationId], payload.chatMessage],
      },
    }
    : state;

这次，我可以看到更新成功，并且ChatMessages计数器（在redux上）增加了+1。 但是渲染不会触发Screen的渲染。

正确的方法是什么？