Two-way sync disables itself whenever folder is displayed in Favourites tab #18045

⚠️ Before posting ⚠️

• This is a bug, not a question or an enhancement.
• I've searched for similar issues and didn't find a duplicate.
• I've written a clear and descriptive title for this issue, not just "Bug" or "Crash".
• I agree to follow Nextcloud's Code of Conduct.

Steps to reproduce

1. Mark a folder as favourite
2. Go to details tab, enable sync
3. Go to Favourites tab (folder has never been synced yet)
4. Wait for it to load
5. Go to Settings -> Internal two way sync
6. Folder is gone

Expected behaviour

2-way sync should not get disabled

Actual behaviour

Loading favourites disables 2-way sync

When enabling sync the only message I see in the log is FileDataStorageManager: saving file Test Folder into [REDACTED]/Weiteres/Test Folder/. Since the same message appears when loading the favourites (see log), I assume it somehow overwrites the 2-way-sync setting.

Android version

17

Device brand and model

Pixel 10

Stock or custom OS?

Stock

Nextcloud android app version

35.0.2

Nextcloud server version

35.0.2

Using a reverse proxy?

No

Android logs

Part of the log when loading the favourites:
11-12 23:12:21.479 4522 4897 D FileDataStorageManager: saving file Test Folder into [REDACTED]/Weiteres/Test Folder/
11-12 23:12:21.509 4522 4897 D RefreshFolderOperation: Checking changes in [REDACTED]/Weiteres/Test Folder/
11-12 23:12:21.510 4522 4897 D OwnCloudClient #1: REQUEST PROPFIND /owncloud/remote.php/dav/files/[REDACTED]
11-12 23:12:21.589 4522 4897 D RefreshFolderOperation: 📂 eTag check
11-12 23:12:21.589 4522 4897 D RefreshFolderOperation: Path: [REDACTED]/Weiteres/Test Folder/
11-12 23:12:21.589 4522 4897 D RefreshFolderOperation: Local eTag: 6af624bde0693
11-12 23:12:21.589 4522 4897 D RefreshFolderOperation: Remote eTag: 6af624bde0693
11-12 23:12:21.589 4522 4897 D RefreshFolderOperation: Changed: false
11-12 23:12:21.589 4522 4897 I RefreshFolderOperation: Checked [REDACTED]/Weiteres/Test Folder/ : not changed
11-12 23:12:21.589 4522 4897 D RefreshFolderOperation: 💾 Remote folder is not changed, getting folder content from database
11-12 23:12:21.589 4522 4897 D FileDataStorageManager: getFolderContent - start
11-12 23:12:21.632 4522 4897 D FileDataStorageManager: getFolderContent - finished
11-12 23:12:21.632 4522 4897 D FileDataStorageManager: saving file Test Folder into [REDACTED]/Weiteres/Test Folder/

Server error logs

Additional information

Possibly a cause for #13734 ?