Fixed
- Reminder lists stayed empty. A list you picked in the settings appeared there, but no task or shopping item ever arrived from it: the request asked the server for calendar events rather than reminders, and a standards-compliant server (Nextcloud, Radicale) correctly answered with nothing. Reminders now arrive from any such list. Nothing was lost while this was broken - the safeguard against deleting on an empty answer kept existing items untouched.