Imported calendar with events if deleted still show activity on nextcloud dashboard

[PeopleInside]

Steps to reproduce

1. Import from a ics file a Google calendar with some events in some near day like tomorrow events or this week events
2. Once imported the calendar should show events and in the nextcloud dashboard you should see that events in the activity widget
3. Delete the imported calendar who will go in the trash
4. Events should be now disappeared in the calendar but if you go on the nextcloud dashboard in activity you still see events

Expected behavior

Once a calendar is removed also events in the nextcloud dashboard widget should be deleted

Actual behaviour

Once a calendar with events are deleted, events not too far from the current day are still showed in the nextcloud dashboard activity widget

Calendar app version

4.7.16

CalDAV-clients used

No response

Browser

Firefox 130

Client operating system

Windows 11

Server operating system

Debian/Ubuntu

Web server

Apache

Database engine version

MariaDB

PHP engine version

Other

Nextcloud version

Nextcloud version [Hub 8] (29.0.6)

Updated from an older installed version or fresh install

Updated from an older version

List of activated apps

No response

Nextcloud configuration

No response

Web server error log

No response

Log file

No response

Browser log

No response

Additional info

Issue discovered while try to resolve another calendar issue #6323