Case T-81/18: Judgment of the General Court of 2 April 2020 –Barata v Parliament (Civil service — Officials — Promotion — Certification procedure — 2016 promotion exercise — Exclusion of the applicant from the final list of officials authorised to take part in the training programme — Article 45a of the Staff Regulations — Obligation to state reasons — Manifest error of assessment — Equal treatment — Rights of the defence)