Case C-761/18 P: Judgment of the Court (Fifth Chamber) of 21 January 2021 — Päivi Leino-Sandberg v European Parliament (Appeal — Access to documents of the EU institutions — Regulation (EC) No 1049/2001 — Article 10 — Refusal to grant access — Action before the General Court of the European Union against a decision by the European Parliament refusing to grant access to a document — Disclosure of the annotated document by a third party after the action was lodged — Order that there was no need to adjudicate pronounced by the General Court on the ground that was no longer any interest in bringing proceedings — Error of law)