[Bug]: Upload triggers folders duplication only in macOS Finder

### ⚠️ Before submitting, please verify the following: ⚠️

- [x] This is a **bug**, not a question or a configuration issue.
- [x] This issue is **not** already reported on Github (I've searched it).
- [x] Nextcloud Server and Desktop Client are **up to date**. See [Server Maintenance and Release Schedule](https://github.com/nextcloud/server/wiki/Maintenance-and-Release-Schedule) and [Desktop Releases](https://nextcloud.com/install/#install-clients) for supported versions.
- [x] I agree to follow Nextcloud's [Code of Conduct](https://nextcloud.com/contribute/code-of-conduct/)

### Bug description

Since updating from `v4.0.2` to `v4.0.3`, some folders are being duplicated on the macOS desktop app using VFS. For instance, the folder `Figures` shown is found on the server, while `Figures 2` is not and was created after I uploaded a couple of small files to `Figures`. `Figures 2` is empty while `Figures` is populated, though all the folders inside `Figures` also got duplicated, but not the files within.

### Steps to reproduce

1. Upload files to a folder `test`
2. `test` is duplicated as `test 2`, and all of the folders inside are also duplicated, but not the files
3. The folder `test 2` does not appear on the server, only on the Finder with the macOS app with VFS enabled

### Expected behavior

Upon upload, the macOS app should not be duplicating folders.

### Which files are affected by this bug

Any

### Operating system

macOS

### Which version of the operating system you are running.

macOS 26.1 Tahoe

### Package

Official macOS Virtual files 12+ universal pkg

### Nextcloud Server version

32.0.3

### Nextcloud Desktop Client version

4.0.3

### Is this bug present after an update or on a fresh install?

Updated from a minor version (ex. 3.16.1 to 3.16.2)

### Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

### Are you using an external user-backend?

- [x] Default internal user-backend
- [ ] LDAP/ Active Directory
- [ ] SSO - SAML
- [ ] Other

### Nextcloud Server logs

```shell
No log entry.
```

### Additional info

_No response_