Spamming of recurring events notification emails

Steps to reproduce

1. Create a recurring event and set email notifications
2. Wait for notification email
3. You will get from 6 to 10 mails for a single event notification
4. Please note: spamming notifications are sent with an interval of 5 or 10 minutes

Expected behavior

Ony one notification mail should be sent

Actual behaviour

6 to 10 mails for a single event notification are sent

Calendar app version

4.2.0

Browser

Chrome v108.0.5359.125

Client operating system

Windows 10

Server operating system

Linux

PHP engine version

PHP 8.1

Nextcloud version

25.0.2

Additional info

Please note this is the third calendar bug issue I open since I updated NextCloud to version 25.0.2 and calendar to version 4.2.0.
Those bugs are a serious problem for who uses NextCloud to organize their professional life as I do.
I tried downgrading NC and Calendar, but i got a message saing "Downgrade is not supported".
I would suggest extremly accurate testing before issuing new versions.
Thank you

No source file, test, or entry point is named in the report. Start by reproducing the recurring-event notification flow described in the steps and trace how scheduled notifications are processed; done means one event produces exactly one email rather than repeated messages.