KF 6.14 update broke KDE Wallet completely. Now I can't even connect to Wi-Fi due to broken Network Manager (error "Failed to get secrets for $AP_NAME").

KDE Wallet Manager tells me I have no wallets even after installing the kf6-kwallet-6.14.1 bugfix update.

Downgrading pam-kwallet to version 6.3.5-1 and kf6-kwallet to version 6.13.0 temporary fixes this issue. Can be used as a workaround.

Upstream issue: https://bugs.kde.org/show_bug.cgi?id=458085#c71 (starting from Comment 71).
Another upstream issue: https://bugs.kde.org/show_bug.cgi?id=504193
Related issue with Chromium/Electron: https://bugs.kde.org/show_bug.cgi?id=504014

Reproducible: Always

Steps to Reproduce:
1. Upgrade KF6 to version 6.14.
2. Reboot or relogin.
Actual Results:
No wallets found. All applications that require KWallet fail to launch or freeze until they time out.

Expected Results:
KWallet should work as expected.

Additional Information:
Log from `KWALLET_DAEMON_DEBUG=1 kwalletd6`:

```
libsecret-CRITICAL **: secret_service_load_collections_sync: assertion 'paths != NULL' failed
kf.wallet.kwalletd: "Could not connect to Secret Service"
```

Log from ksecretd systemd unit:
```
QDBusObjectPath: invalid path "/org/freedesktop/secrets/collection/"
QDBusObjectPath: invalid path ""
qt.dbus.integration: QDBusConnection: error: could not send reply message to service "": Marshalling failed: Invalid object path passed in arguments
```