[Bug]: Can't remove lock

### ⚠️ This issue respects the following points: ⚠️

- [x] This is a **bug**, not a question or a configuration/webserver/proxy issue.
- [x] This issue is **not** already reported on [Github](https://github.com/nextcloud/server/issues?q=is%3Aopen+is%3Aissue+label%3Abug) OR [Nextcloud Community Forum](https://help.nextcloud.com/) _(I've searched it)_.
- [x] Nextcloud Server **is** up to date. See [Maintenance and Release Schedule](https://github.com/nextcloud/server/wiki/Maintenance-and-Release-Schedule) for supported versions.
- [x] I agree to follow Nextcloud's [Code of Conduct](https://nextcloud.com/contribute/code-of-conduct/).

### Bug description

I am unable to remove a file lock.

There is an associated conflict file, which I cannot delete. There is no popup menu delete option.

Every time I open the file it presents 2 options: Keep the local version or keep the server option. I select Keep the local version. Nothing seems to happen. And I cannot remove the lock. And I cannot delete the conflict file.

### Steps to reproduce

1. Don't know how to produce this condition
2.
3.

### Expected behavior

I expect to remove a lock regardless of what transpires. I should ALWAYS be able to do this.
Also, I should be able to delete any file I choose and when I choose.
The software should NEVER prevent me from doing any of these actions.

### Nextcloud Server version

34

### Operating system

Other

### PHP engine version

PHP 8.5

### Web server

Apache (supported)

### Database engine version

MariaDB

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

_No response_

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

Encryption is Disabled

### What user-backends are you using?

- [x] Default user-backend _(database)_
- [ ] LDAP/ Active Directory
- [ ] SSO - SAML
- [ ] Other

### Configuration report

```json
"system": {
"htaccess.RewriteBase": "\/",
"memcache.local": "\\OC\\Memcache\\APCu",
"apps_paths": [
{
"path": "\/var\/www\/html\/apps",
"url": "\/apps",
"writable": false
},
{
"path": "\/var\/www\/html\/custom_apps",
"url": "\/custom_apps",
"writable": true
}
],
"overwritehost": "mikeb888-cloud.duckdns.org",
"upgrade.disable-web": true,
"instanceid": "***REMOVED SENSITIVE VALUE***",
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"mikeb888-cloud.duckdns.org"
],
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"dbtype": "mysql",
"version": "34.0.2.1",
"overwrite.cli.url": "https:\/\/mikeb888-cloud.duckdns.org",
"overwriteprotocol": "https",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbtableprefix": "oc_",
"mysql.utf8mb4": true,
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"trusted_proxies": "***REMOVED SENSITIVE VALUE***",
"forwarded_for_headers": [
"HTTP_X_FORWARDED_FOR"
],
"loglevel": 2,
"maintenance": false,
"memories.db.triggers.fcu": true,
"memories.exiftool": "\/var\/www\/html\/custom_apps\/memories\/bin-ext\/exiftool-amd64-glibc",
"memories.vod.path": "\/var\/www\/html\/custom_apps\/memories\/bin-ext\/go-vod-amd64",
"app_install_overwrite": []
}
}
```

### List of activated Apps

```shell
Enabled:
- activity: 7.0.0
- app_api: 34.0.0
- appstore: 1.0.0
- bruteforcesettings: 7.0.0
- circles: 34.0.0
- cloud_federation_api: 1.18.0
- comments: 1.24.0
- contacts: 8.7.4
- contactsinteraction: 1.15.0
- cookbook: 0.11.9
- dashboard: 7.14.0
- dav: 1.39.0
- federatedfilesharing: 1.24.0
- federation: 1.24.0
- files: 2.6.0
- files_downloadlimit: 5.2.0
- files_external: 1.26.0
- files_lock: 34.0.1
- files_pdfviewer: 7.0.0-dev.0
- files_reminders: 1.7.0
- files_sharing: 1.26.0
- files_trashbin: 1.24.0
- files_versions: 1.27.0
- firstrunwizard: 7.0.0-dev.0
- logreader: 7.0.0
- lookup_server_connector: 1.22.0
- memories: 8.1.0
- news: 28.6.0
- nextcloud_announcements: 6.0.0
- notes: 6.0.1
- notifications: 7.0.0-dev.1
- oauth2: 1.22.0
- office: 1.0.0
- pantry: 0.24.0
- password_policy: 6.0.0-dev.0
- passwords: 2026.7.20
- passwords_handbook: 2026.7.20
- photos: 7.0.0
- privacy: 6.0.0-dev.1
- profile: 1.3.0
- provisioning_api: 1.24.0
- qownnotesapi: 26.5.0
- recommendations: 7.0.0
- related_resources: 5.0.0-dev.0
- serverinfo: 6.0.0
- settings: 1.17.0
- sharebymail: 1.24.0
- support: 6.0.0
- survey_client: 6.0.0-dev.0
- systemtags: 1.24.0
- text: 8.0.0
- theming: 2.9.0
- twofactor_backupcodes: 1.23.0
- twofactor_totp: 16.0.0
- updatenotification: 1.24.0
- user_status: 1.14.0
- viewer: 7.0.0-dev.0
- weather_status: 1.14.0
- webhook_listeners: 1.6.0
- workflowengine: 2.16.0
Disabled:
- admin_audit: 1.24.0
- encryption: 2.22.0
- shopping_list: 1.6.2 (installed 1.6.2)
- suspicious_login: 12.0.0-dev.0
- twofactor_nextcloud_notification: 8.0.0
- user_ldap: 1.25.0
```

### Nextcloud Signing status

```shell
No errors have been found.
```

### Nextcloud Logs

```json
No related log entries
```

### Additional info

_No response_

No source file, test, or reproducible sequence is provided. Start by reproducing the lock and conflict-file state in the Nextcloud desktop client, then trace the lock-removal and conflict-file UI path; done means the lock and conflict file can be removed and the local/server choice completes.

Written by the indexing model from the issue text.