Versioning does not work if the `versionKey` option for `toObject` is set to `false` when using `insertMany` about mongoose HOT 4 CLOSED

const schema = new mongoose.Schema(
  { name: String },
  // Could be `optimisticConcurrency` as well
  { versionKey: false } //defaults to __v 
);

#!/usr/bin/env node
const mongoose = require('mongoose');

const testSchema = new mongoose.Schema(
  { name: String },
  // Could be `optimisticConcurrency` as well
  { versionKey: '__v' }
);

// testSchema.set('__v', false) //sets __v to 0 commented out or not

const Test = mongoose.model("Test", testSchema);

async function run() {
  await mongoose.connect('mongodb://localhost:27017');
  await mongoose.connection.dropDatabase();

  await Test.insertMany([{ name: 'x' }]);

  const doc = await Test.findOne();

  console.log(doc.__v); // 0

  console.log('done');

  process.exit(0)
}

run();