I think it is in conflict with A.01.06 where a default language should be provide anyway.
A.02.09 states that if language requested by client is NOT contained in the list of supported languages, the default language is used as defined in \inspire_common:Language
However based on 3.10 this should be equivalent to missing language parameter? -> In other words, the response should contain metadata records of several natural languages, as provided by the INSPIRE Discovery Service.
This issue has been extracted from the issue list on:https://ies-svn.jrc.ec.europa.eu/issues/2685
Comment
A.02.09 states that if language requested by client is NOT contained in the list of supported languages, the default language is used as defined in \inspire_common:Language
However based on 3.10 this should be equivalent to missing language parameter? -> In other words, the response should contain metadata records of several natural languages, as provided by the INSPIRE Discovery Service.