Commission Delegated Regulation (EU) 2020/1272 of 4 June 2020 amending and correcting Delegated Regulation (EU) 2019/979 supplementing Regulation (EU) 2017/1129 of the European Parliament and of the Council with regard to regulatory technical standards on key financial information in the summary of a prospectus, the publication and classification of prospectuses, advertisements for securities, supplements to a prospectus, and the notification portal (Text with EEA relevance)