Case C-243/18 P: Judgment of the Court (First Chamber) of 8 May 2019 — European Joint Undertaking for ITER and the Development of Fusion for Energy v Yosu Galocha (Appeal — Civil service — Officials — Competition — Judgment annulling a decision — Extent of the annulment — Weighing up of interests involved — Annulment of reserve lists — Annulment of the decisions to appoint successful candidates from those lists)