DeleteMarker:     tc.isDelMarker,
				IsLatest:         !tc.isNoncurrent,
				SuccessorModTime: tc.objectSuccessorModTime,
				VersionID:        tc.versionID,
			}
			opts.NumVersions = 1
			if tc.hasManyVersions {
				opts.NumVersions = 2 // at least one noncurrent version
			}
			if res := lc.Eval(opts); res.Action != tc.expectedAction {
				t.Fatalf("Expected action: `%v`, got: `%v`", tc.expectedAction, res.Action)

}

func (d *naughtyDisk) DeleteVersions(ctx context.Context, volume string, versions []FileInfoVersions, opts DeleteOptions) []error {
	if err := d.calcError(); err != nil {
		errs := make([]error, len(versions))
		for i := range errs {
			errs[i] = err
		}
		return errs
	}
	return d.disk.DeleteVersions(ctx, volume, versions, opts)
}

active-active replication caused by allowing delete markers set on a object version with `REPLICA` status back to source.

In the case of versioned deletes a.k.a permanent delete of a version by doing a `mc rm --version-id` on a object, replication implementation marks a object version permanently deleted as `PENDING` purge and deletes the version from source after syncing to the target and ensuring target version is deleted. The delete marker being deleted or object version being deleted...

	for index, metadata := range partsMetadata {
		if errs[index] != nil {
			continue
		}
		vid := metadata.VersionID
		if metadata.VersionID == "" {
			vid = nullVersionID
		}
		vidMap[vid]++
		etags[index] = metadata.Metadata["etag"]
	}

	for _, count := range vidMap {
		// do we have enough common versions
		// that have enough quorum to satisfy
		// the etag.
		if count >= quorum {
			return etags
		}

			if u.Object == "" {
				healBucket(u.Bucket, scan)
			} else {
				if len(u.Versions) > 0 {
					vers := len(u.Versions) / 16
					if vers > 0 {
						for i := range vers {
							healObject(u.Bucket, u.Object, uuid.UUID(u.Versions[16*i:]).String(), scan)
						}
					}
				} else {
					healObject(u.Bucket, u.Object, u.VersionID, scan)
				}
			}

			wait()
		}
	}

		AccessTier:  az.tier(), // set tier if specified
		Metadata:    azMeta,
	})
	if err != nil {
		return "", azureToObjectError(err, az.Bucket, az.getDest(object))
	}
	vid := ""
	if resp.VersionID != nil {
		vid = *resp.VersionID
	}
	return remoteVersionID(vid), nil
}

func (az *warmBackendAzure) Put(ctx context.Context, object string, r io.Reader, length int64) (remoteVersionID, error) {

	}
	if x.metaVer > xlMetaVersion {
		return x, buf, fmt.Errorf("decodeXLHeaders: Unknown xl meta version %d", x.metaVer)
	}
	x.versions, buf, err = msgp.ReadIntBytes(buf)
	if err != nil {
		return x, buf, err
	}
	if x.versions < 0 {
		return x, buf, fmt.Errorf("decodeXLHeaders: Negative version count %d", x.versions)
	}
	return x, buf, nil
}

	SubnetAPIKey = "x-subnet-api-key"
)

// Common http query params S3 API
const (
	VersionID = "versionId"

	PartNumber = "partNumber"

	UploadID = "uploadId"
)

// http headers sent to webhook targets
const (
	// Reports the version of MinIO server
	MinIOVersion             = "x-minio-version"
	WebhookEventPayloadCount = "x-minio-webhook-payload-count"

//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of

}

// DeleteVersions - deletes list of specified versions if present
func (client *storageRESTClient) DeleteVersions(ctx context.Context, volume string, versions []FileInfoVersions, opts DeleteOptions) (errs []error) {
	if len(versions) == 0 {
		return errs
	}

	values := make(url.Values)
	values.Set(storageRESTVolume, volume)
	values.Set(storageRESTTotalVersions, strconv.Itoa(len(versions)))

	var buffer bytes.Buffer