无法多次调度同一操作

Question

想象一下以下组件，它使用相同的变量两次调用相同的函数getHistory（）。执行以下代码时，我注意到请求仅执行了一次（并成功执行）。 为什么getHistory（）只执行一次？

组件

import React, { Component } from 'react';
import rest from '../redux/reducers/rest';
import { connect } from 'react-redux';
import { render } from 'react-dom';
import { VictoryChart, VictoryLine, VictoryVoronoiContainer } from 'victory';

class HistoryGraph extends Component {
  constructor(props){
    super(props);
  }

  componentWillMount(){
    this.props.getHistory('a1', 'b1');
    this.props.getHistory('a2', 'b2');
  }

  render() {
   return (<div>a</div>)
  }
}

const mapDispatchToProps = dispatch => ({
  getHistory(a, b) {
    dispatch(rest.actions.history({a, b})).catch(err => console.log(err));
  }
});

const mapStateToProps = state => ({
  history: state.history
});

export default connect(mapStateToProps, mapDispatchToProps)(HistoryGraph);

休息文件（使用redux-api）

import reduxApi, {transformers} from "redux-api";
import adapterFetch from 'redux-api/lib/adapters/fetch';
import map from "lodash/map";

let apiRoot = 'https://pseudo.com/api';

const rest = reduxApi({
  history: {
    url: `${apiRoot}/history/:a/?anothervariable=:b`,
    crud: true,
    options: {
      method: 'GET'
    }
  }
}).use('options', (url, params, getState) => {
  const headers = {
    'Accept': 'application/json',
    'Content-Type': 'application/json'
  };

  return {headers};
}).use('fetch', adapterFetch(fetch)).use('responseHandler', err => {
  if (err) {
    console.log(err)
  }
});

export default rest;
export const reducers = rest.reducers;