}

	oi.UserDefined = make(map[string]string, len(objInfo.Metadata))
	for k, v := range objInfo.Metadata {
		oi.UserDefined[k] = v[0]
	}

	ce, ok := oi.UserDefined[xhttp.ContentEncoding]
	if !ok {
		ce, ok = oi.UserDefined[strings.ToLower(xhttp.ContentEncoding)]
	}
	if ok {
		oi.ContentEncoding = ce
	}

	_, ok = oi.UserDefined[xhttp.AmzStorageClass]
	if !ok {

	oi := objInfo.Clone()
	oi.metadataOnly = true // Perform only metadata updates.

	// allow retry in the case of failure to restore
	delete(oi.UserDefined, xhttp.AmzRestore)

	if _, err := er.CopyObject(ctx, bucket, object, bucket, object, oi, ObjectOptions{
		VersionID: oi.VersionID,
	}, ObjectOptions{
		VersionID: oi.VersionID,
	}); err != nil {

	sort.Slice(results, func(i, j int) bool {
		a, b := results[i], results[j]
		if a.oi.ModTime.Equal(b.oi.ModTime) {
			// On tiebreak, select the lowest pool index.
			return a.zIdx < b.zIdx
		}
		return a.oi.ModTime.After(b.oi.ModTime)
	})

	for _, res := range results {
		err := res.err
		if err == nil {
			return res.oi, res.zIdx, nil
		}
		if !isErrObjectNotFound(err) && !isErrVersionNotFound(err) {

			// tracking deleted transitioned objects
			switch {
			case oi.DeleteMarker, oi.TransitionedObject.FreeVersion:
				return
			}
			tier := oi.StorageClass
			if tier == "" {
				tier = storageclass.STANDARD // no SC means "STANDARD"
			}
			if oi.TransitionedObject.Status == lifecycle.TransitionComplete {
				tier = oi.TransitionedObject.Tier
			}
			if sizeS.tiers != nil {

			t.Fatalf("%s : %s", instanceType, err.Error())
		}
		if object.addDeleteMarker {
			oi, err := obj.DeleteObject(context.Background(), object.parentBucket, object.name, ObjectOptions{
				Versioned: globalBucketVersioningSys.PrefixEnabled(object.parentBucket, object.name),
			})
			if err != nil {
				t.Fatalf("%s : %s", instanceType, err.Error())
			}
			if oi.DeleteMarker != object.addDeleteMarker {

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