Hypercore behaviour change 10.5.4->10.6.0

illustration.js

import Hyperswarm from 'hyperswarm'
import Corestore from 'corestore'
import ram from 'random-access-memory'

/* 
With hypercore 10.5.4, the output is:
  origCore lenght: 1
  Replication with peer set up
  Replication with peer set up
  readCore length: 1

With hypercore v10.6.0, the output is:
  origCore lenght: 1
  Replication with peer set up
  Replication with peer set up
  readCore length: 0
*/

const store1 = new Corestore(ram)
const store2 = new Corestore(ram)

const origCore = store1.get({ name: 'acore' })
await origCore.append('entry')
console.log('origCore lenght:', origCore.length)

const swarm1 = new Hyperswarm()
setupReplication(swarm1, store1)
await swarm1.join(origCore.discoveryKey, { server: true })
await swarm1.flush()

const swarm2 = new Hyperswarm()
setupReplication(swarm2, store2)
await swarm2.join(origCore.discoveryKey, { client: true })
await swarm2.flush()

const readCore = store2.get({ key: origCore.key })
await readCore.ready()
await readCore.update()
console.log('readCore length:', readCore.length)

await swarm1.destroy()
await swarm2.destroy()

function setupReplication (swarm, corestore) {
  swarm.on('connection', (socket) => {
    corestore.replicate(socket)
    socket.on('error', (err) => {
      console.error('socket error:', err.stack)
      socket.destroy()
    })
    console.log('Replication with peer set up')
  })
}