Case C-104/18 P: Judgment of the Court (Fifth Chamber) of 12 September 2019 — Koton Mağazacilik Tekstil Sanayi ve Ticaret AȘ v European Union Intellectual Property Office (EUIPO), Joaquín Nadal Esteban (Appeal – EU trade mark – Regulation (EC) No 207/2009 – Absolute grounds for invalidity – Article 52(1)(b) – Bad faith at the time that an application for a trade mark is filed)