KDE's Kalendar, and its underlying library libkcal, create iCalendar instances in which the VTIMEZONE component has a single TZID element (and nothing else).
While technically this is illegal according to IETF RFC-5545, we should consider a work-around in which vObject could look up the missing definition using the well-known Olsen database names (eg. US/Eastern).
See
KDE's Kalendar, and its underlying library libkcal, create iCalendar instances in which the VTIMEZONE component has a single TZID element (and nothing else).
While technically this is illegal according to IETF RFC-5545, we should consider a work-around in which vObject could look up the missing definition using the well-known Olsen database names (eg. US/Eastern).