Case T-545/18: Judgment of the General Court of 11 September 2019 — YL v Commission (Civil service — Officials — Promotion — 2017 promotion procedure — Decision not to promote the applicant to grade AD 7 with effect from 1 January 2017 — Article 45 of the Staff Regulations — Article 9(3) of Annex IX to the Staff Regulations — Misuse of powers — Disciplinary measure)