HeadFailedTotal:   atomic.LoadUint64(&v.HeadFailedTotal),
		GetFailedTotal:    atomic.LoadUint64(&v.GetFailedTotal),
	}
}

type replProxyAPI string

const (
	putObjectTaggingAPI    replProxyAPI = "PutObjectTagging"
	getObjectTaggingAPI    replProxyAPI = "GetObjectTagging"
	removeObjectTaggingAPI replProxyAPI = "RemoveObjectTagging"
	headObjectAPI          replProxyAPI = "HeadObject"

Any metadata changes on the source object version, such as metadata updates via PutObjectTagging, PutObjectRetention, PutObjectLegalHold and COPY api are replicated in a similar manner to target version, with the `X-Amz-Replication-Status` again cycling through the same states.

			Queries("acl", "")
		// GetObjectTagging
		router.Methods(http.MethodGet).Path("/{object:.+}").
			HandlerFunc(s3APIMiddleware(api.GetObjectTaggingHandler, traceHdrsS3HFlag)).
			Queries("tagging", "")
		// PutObjectTagging
		router.Methods(http.MethodPut).Path("/{object:.+}").
			HandlerFunc(s3APIMiddleware(api.PutObjectTaggingHandler, traceHdrsS3HFlag)).
			Queries("tagging", "")
		// DeleteObjectTagging

}

// PutObjectTaggingHandler - PUT object tagging
func (api objectAPIHandlers) PutObjectTaggingHandler(w http.ResponseWriter, r *http.Request) {
	ctx := newContext(r, w, "PutObjectTagging")
	defer logger.AuditLog(ctx, w, r, mustGetClaimsFromToken(r))

	vars := mux.Vars(r)
	bucket := vars["bucket"]
	object, err := unescapePath(vars["object"])
	if err != nil {

	policyBytes := []byte(fmt.Sprintf(`{
  "Version": "2012-10-17",
  "Statement": [
   {
    "Sid": "ObjectActionsRW",
    "Effect": "Allow",
    "Action": [
     "s3:PutObject",
     "s3:PutObjectTagging",
     "s3:AbortMultipartUpload",
     "s3:DeleteObject",
     "s3:GetObject",
     "s3:GetObjectTagging",
     "s3:GetObjectVersion",
     "s3:ListMultipartUploadParts"
    ],
    "Resource": [

				popts := minio.PutObjectTaggingOptions{
					VersionID: opts.VersionID,
					Internal: minio.AdvancedObjectTaggingOptions{
						ReplicationProxyRequest: "true",
					},
				}
				err = tgt.PutObjectTagging(ctx, tgt.Bucket, object, tags, popts)
			} else {
				dopts := minio.RemoveObjectTaggingOptions{
					VersionID: opts.VersionID,
					Internal: minio.AdvancedObjectTaggingOptions{