[REG 6.7.3->6.8.2] QEvent::FileOpen no longer received when opening custom URL protocol in Qt 6.8

When opening a URL handled by a custom protocol registered to my application, MyApplication::event no longer receives events of type QEvent::FileOpen. The application does receive QEvent::ApplicationStateChange events correctly.

This issue occurs in Qt 6.8.2 but does not occur in Qt 6.7.3.
It has been confirmed on macOS, but may also affect other operating systems.

Steps to reproduce:
1. Create a Qt application that registers a custom URL protocol (in Info.plist for macOS)
2. Implement event handling for QEvent::FileOpen in MyApplication::event
3. Set up a web redirect from a standard URL to the custom protocol URL
4. Click on a web link that redirects to the custom protocol
5. Observe that in Qt 6.8, the application launches but QEvent::FileOpen is not triggered

Expected behavior:
The application should receive a QEvent::FileOpen event containing the custom URL, as it did in Qt 6.7.

Actual behavior:
The application only receives QEvent::ApplicationStateChange but no QEvent::FileOpen event.

Additional information:

• The URL scheme is correctly registered in the Info.plist file
• The redirection from web URL to custom protocol functions correctly (confirmed with curl)
• System successfully launches the application when the custom protocol is activated
• The same code works perfectly with Qt 6.7