logger.V(4).Info("Synchronizing PersistentVolume, volume was bound and got unbound (by user?), waiting for syncClaim to fix it", "volumeName", volume.Name)
			}
			// In both cases, the volume is Bound and the claim is Pending.
			// Next syncClaim will fix it. To speed it up, we enqueue the claim
			// into the controller, which results in syncClaim to be called
			// shortly (and in the right worker goroutine).

	// an old version.
	logger := klog.FromContext(ctx)
	new, err := ctrl.storeClaimUpdate(logger, claim)
	if err != nil {
		logger.Error(err, "")
	}
	if !new {
		return
	}
	err = ctrl.syncClaim(ctx, claim)
	if err != nil {
		if errors.IsConflict(err) {
			// Version conflict error happens quite often and the controller
			// recovers from it easily.