The previous rule named every non-place id by its current offset, which renamed legacy ids such as Japan, called Etc/UTC "GMT" and made a CET row's name change at DST. Only the Etc/GMT+-n ids have a misleading last segment, so ZoneCatalog.cityFallbackFor now flips just those to their real offset. That also reaches the zone picker's device row, which takes its name from the same fallback.