Case T-511/18: Judgment of the General Court of 25 June 2020 — XH v Commission (Civil service — Officials — Promotion — 2017 promotion exercise — Decision not to promote — Clarity and precision of a plea in law in the application — Rule requiring correspondence — Challenge of definitive acts — Admissibility — Article 45 of the Staff Regulations — Interim probation report — End-of-probation report — Appraisal report — Factors taken into account for the consideration of the comparative merits — Regularity of the procedure — Liability — Non-material damage)