sys.RUnlock()

	if tgt.Client != nil {
		return tgt.Client
	}
	defer func() { // lazy refresh remote targets
		if tgt.Client == nil && !sys.isReloadingTarget(bucket, arn) && (tgt.lastRefresh.Equal(timeSentinel) || tgt.lastRefresh.Before(UTCNow().Add(-5*time.Minute))) {
			tgts, err := globalBucketMetadataSys.GetBucketTargetsConfig(bucket)
			if err == nil {
				sys.markRefreshInProgress(bucket, arn)