If you set this option for the current document and then save the document, for example, in an older binary format, this option will not be saved. If you later open the file from the older format, this option will be set by default.
如果在当前文档中设置了该选项并保存了此文档，例如以早期的二进制格式保存，此选项将不会被保存。日后以早期格式打开此文件，此选项将被设为默认值。