What will happen to subscription while consumer leadership changed

[yeqown]

I got such code:

sub, err = c.js.PullSubscribe(subj, durableName)
if err != nil {
  // handle err
}


if msgs, err := sub.Fetch(100, n.MaxWait(2*time.Second)); err != nil {    
  // now nats.ErrConsumerLeadershipChanged ("nats: Leadership Changed") encountered
  valid := sub.IsValid()
  // What would the valid be?
}

Would the subscription instance be closed?

// IsValid returns a boolean indicating whether the subscription
// is still active. This will return false if the subscription has
// already been closed.
func (s *Subscription) IsValid() bool {
	if s == nil {
		return false
	}
	s.mu.Lock()
	defer s.mu.Unlock()
	return s.conn != nil && !s.closed
}