continue
				}
				if strings.HasPrefix(k, "minio.metadata.") {
					k = strings.TrimPrefix(k, "minio.metadata.")
					hdrs.Set(k, v)
				}
			}
			m, err := extractMetadata(ctx, textproto.MIMEHeader(hdrs))
			if err != nil {
				return err
			}
			for k, v := range m {
				metadata[k] = v
			}
		} else {
			versionID = r.Form.Get(xhttp.VersionID)