Calender subscription URL not stripped

Steps to reproduce

1. Choose iCal URL to import
2. Click "New subscription from link"
3. Import the URL, but prefix it with a couple of spaces

Expected behavior

The URL should be stripped and written to the database

Actual behaviour

The URL is not stripped which can be seen by executing select * from oc_calendarsubscriptions in the database. This causes issues when syncing the calendar on Android using DAVx5/ICSx5 as shown in this discussion

Calendar app version

4.7.6

CalDAV-clients used

DAVx5/ICSx5

Browser

N/A

Client operating system

Android 14

Server operating system

No response

Web server

None

Database engine version

None

PHP engine version

None

Nextcloud version

No response

Updated from an older installed version or fresh install

None

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

No response

Reproduce the issue through the “New subscription from link” flow using a URL prefixed with spaces, then inspect the value stored in the oc_calendarsubscriptions table. Trace the subscription import entry point and verify that the persisted URL no longer contains the leading spaces, then test calendar syncing with DAVx5/ICSx5.