Case C-344/18: Judgment of the Court (Fourth Chamber) of 26 March 2020 (request for a preliminary ruling from the arbeidshof te Gent — Belgium) — ISS Facility Services NV v Sonia Govaerts, Atalian NV, formerly Euroclean NV (Reference for a preliminary ruling — Directive 2001/23/EC — Article 3(1) — Transfers of undertakings — Safeguarding of employees’ rights — Public contract for cleaning services — Award of market lots to two new contractors — Re-engagement of a worker assigned to all the market lots)