19.388 office:version - "in any case where an apparent OpenDocument document" what is "apparent OpenDocument document"?

Replace the paragraph in question and the bullet list below it with: An OpenDocument 1.2 consumer may process a document that does not provide the office:version attribute or where the value of the office:version attribute is not "1.2" as if it is an OpenDocument 1.2 document. Any elements and attributes that are neither recognized, accepted, nor supported by the consumer, even though identified in XML namespaces defined for use in OpenDocument 1.2 documents, should be treated in accordance with the rules for foreign elements and attributes. 3.17