[Bug]: stop recording have memory leak

[RenaultZC]

Preflight Checklist

• I have searched the issue tracker for a bug report that matches the one I want to file, without success.

What package is this bug report for?

rrweb

Version

v2.0.0-alpha.18

Expected Behavior

stop record no memory growth

Actual Behavior

Steps to Reproduce

1. create Vue project and create button
2. click button start record
3. click again stop record
4. no memory growth

const handleClick = () => {
  if (tmp) {
    tmp()

    tmp = null

    console.error('destroy rrweb')
  } else {
    tmp = record({
      emit: function () {}
    })

    console.error('init rrweb')
  }
}

Testcase Gist URL

No response

Additional Information

No response