### ⚠️ This issue respects the following points: ⚠️
- [X] This is a **bug**, no…t 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
File sorting based on numbers with points ( YYYY.MM.DD ) has changed in 28.0.1. No problem is 27.1.5
For example, with 3 folders named 2023.01.08, 2023.04.09, 2023.10.12, if I to do descending sort order or ascending, 2023.01.08 will be in the middle, not at the beginning or the end.
If you replace points with hyphens (2023-01-08, 2023-04-09, 2023-10-12), 2023-01-08 will be at beginning or at the end.
### Steps to reproduce
1.Create 3 folder named 2023.01.08, 2023.04.09, 2023.10.12
2.Clich on file sort by name
3.
### Expected behavior
NOK : Descending sort order or ascending, 2023.01.08 will be in the middle, not at the beginning or the end.
OK : Replace points with hyphens (2023-01-08, 2023-04-09, 2023-10-12), 2023-01-08 will be at beginning or at the end.
### Installation method
Community Manual installation with Archive
### Nextcloud Server version
28
### Operating system
Debian/Ubuntu
### PHP engine version
PHP 8.2
### Web server
Apache (supported)
### Database engine version
MariaDB
### Is this bug present after an update or on a fresh install?
Upgraded to a MAJOR version (ex. 22 to 23)
### Are you using the Nextcloud Server Encryption module?
None
### What user-backends are you using?
- [X] Default user-backend _(database)_
- [X] LDAP/ Active Directory
- [ ] SSO - SAML
- [ ] Other
### Configuration report
```shell
{
"system": {
"instanceid": "***REMOVED SENSITIVE VALUE***",
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"192.168.XXX.XXX",
],
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"dbtype": "mysql",
"version": "28.0.1.1",
"overwrite.cli.url": "https:\/\/XXX.XXX.XXX.fr\/nextcloud",
"overwritehost": "XXX.XXX.XXX.fr",
"overwriteprotocol": "https",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "",
"dbtableprefix": "oc_",
"default_phone_region": "FR",
"mysql.utf8mb4": true,
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"memcache.distributed": "\\OC\\Memcache\\Redis",
"memcache.local": "\\OC\\Memcache\\Redis",
"memcache.locking": "\\OC\\Memcache\\Redis",
"redis": {
"host": "***REMOVED SENSITIVE VALUE***",
"port": 6379
},
"maintenance": false,
"theme": "",
"loglevel": 2,
"mail_domain": "***REMOVED SENSITIVE VALUE***",
"mail_from_address": "***REMOVED SENSITIVE VALUE***",
"mail_smtpmode": "smtp",
"mail_smtphost": "***REMOVED SENSITIVE VALUE***",
"mail_smtpport": "25",
"mail_sendmailmode": "smtp",
"default_language": "fr",
"default_locale": "fr_FR",
"skeletondirectory": "",
"trusted_proxies": "***REMOVED SENSITIVE VALUE***",
"ldapProviderFactory": "OCA\\User_LDAP\\LDAPProviderFactory",
"user_email_visible": "true"
}
}
```
### List of activated Apps
```shell
Enabled:
- activity: 2.20.0
- circles: 28.0.0-dev
- cloud_federation_api: 1.11.0
- dav: 1.29.1
- federatedfilesharing: 1.18.0
- federation: 1.18.0
- files: 2.0.0
- files_accesscontrol: 1.18.0
- files_pdfviewer: 2.9.0
- files_reminders: 1.1.0
- files_sharing: 1.20.0
- files_trashbin: 1.18.0
- files_versions: 1.21.0
- groupfolders: 16.0.2
- logreader: 2.13.0
- lookup_server_connector: 1.16.0
- notifications: 2.16.0
- oauth2: 1.16.3
- password_policy: 1.18.0
- privacy: 1.12.0
- provisioning_api: 1.18.0
- quota_warning: 1.18.0
- recommendations: 2.0.0
- related_resources: 1.3.0
- serverinfo: 1.18.0
- settings: 1.10.1
- sharebymail: 1.18.0
- systemtags: 1.18.0
- theming: 2.3.0
- twofactor_backupcodes: 1.17.0
- updatenotification: 1.18.0
- user_ldap: 1.19.0
- viewer: 2.2.0
- workflowengine: 2.10.0
Disabled:
- admin_audit: 1.18.0
- bruteforcesettings: 2.8.0 (installed 2.4.0)
- comments: 1.18.0 (installed 1.10.0)
- contactsinteraction: 1.9.0 (installed 1.1.0)
- dashboard: 7.8.0 (installed 7.0.0)
- encryption: 2.16.0
- files_antivirus: 5.4.0 (installed 5.4.0)
- files_automatedtagging: 1.18.0 (installed 1.18.0)
- files_downloadactivity: 1.16.0 (installed 1.16.0)
- files_external: 1.20.0
- files_retention: 1.16.0 (installed 1.16.0)
- files_rightclick: 0.15.1 (installed 1.6.0)
- files_trackdownloads: 1.11.0 (installed 1.11.0)
- firstrunwizard: 2.17.0 (installed 2.9.0)
- nextcloud_announcements: 1.17.0 (installed 1.9.0)
- photos: 2.4.0 (installed 1.1.0)
- ransomware_protection: 1.14.0 (installed 1.14.0)
- sharelisting: 1.2.0 (installed 1.2.0)
- side_menu: 3.11.2 (installed 3.11.2)
- support: 1.11.0 (installed 1.3.0)
- survey_client: 1.16.0 (installed 1.8.0)
- suspicious_login: 6.0.0
- text: 3.9.1 (installed 3.1.0)
- twofactor_totp: 10.0.0-beta.2
- user_status: 1.8.1 (installed 1.0.1)
- weather_status: 1.8.0 (installed 1.0.0)
```
### Nextcloud Signing status
```shell
No errors have been found.
```
### Nextcloud Logs
_No response_
### Additional info
_No response_
But your example is valid/reproduced. I agree it looks like a change in behavior and a bug.
