It's not in Part-FCL, it's in Article 8 of Regulation 1178/2011 which refers to "Applicants for Part-FCL licences [ratings or certificates] already holding the equivalent licence, rating or certificate issued in accordance with Annex 1 to the Chicago Convention". In EASA-speak, if a rating or certificate is not valid then it is not 'held'. This is why, when a licence is re-issued, invalid ratings are transferred to an area titled "Ratings previously held".