bug: App loops on passphrase and crashes with IllegalStateException: metadata is null!

When accessing an E2EE folder created on iOS, the Android app (Samsung A33, Android 16) enters an infinite passphrase loop and eventually crashes.

```
### Cause of error
java
Exception in thread "Thread-40" java.lang.IllegalStateException: metadata is null!
at com.owncloud.android.operations.RefreshFolderOperation.synchronizeData(RefreshFolderOperation.java:546)
at com.owncloud.android.operations.RefreshFolderOperation.fetchAndSyncRemoteFolder(RefreshFolderOperation.java:464)
at com.owncloud.android.operations.RefreshFolderOperation.run(RefreshFolderOperation.java:275)
at com.owncloud.android.lib.common.operations.RemoteOperation.run(RemoteOperation.java:387)
at java.lang.Thread.run(Thread.java:1564)

### App information
* ID: com.nextcloud.client
* Version: 330000090
* Build flavor: gplay

### Device information
* Brand: samsung
* Device: a33x
* Model: SM-A336E
* Id: BP2A.250605.031.A3
* Product: a33xnsdxx

### Firmware
* SDK: 36
* Release: 16
* Incremental: A336EDXSGGZA1
```