Gist for reproducing an error in mongoose CoreMongooseArray.includes function

mongoose_includes_error.js

const mongoose = require('mongoose');

const personSchema = new mongoose.Schema({
    name: String,
    friends: [{
        name: String
    }]
});

const Person = mongoose.model('Person', personSchema);

const friendsList = [
    {name: 'foo'},
    {name: 'bar'}
];

const testPerson = new Person({
    name: 'p1',
    friends: friendsList
});

// should print "CoreMongooseArray.includes: false"
console.log('Array.includes: ', friendsList.map(f => f.name).includes('foo', 1));
// should print "CoreMongooseArray.includes: false"
console.log('CoreMongooseArray.includes: ', testPerson.friends.map(f => f.name).includes('foo', 1));