Bad reducer

reducer.js

import {LOCATION_CHANGE} from 'react-router-redux';

const initialState = {
    timeFilter: '1M'
};

export const exampleReducer = (state = initialState, action) => {
    switch (action.type) {
        case LOCATION_CHANGE:
            return {
                ...state,
                timeFilter: action.payload.query.date || initialState.timeFilter,
            }
        default:
            return state;
    }
};