[Bug]: Wrong metadata due to inconsistent scanning behavior of external storage

[haarp]

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• Nextcloud Server is running on 64bit capable CPU, PHP and OS.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

When an local external storage is freshly added, manually navigating it will update folders with the correct timestamp. But waiting for it to automatically get scanned will update folders with the wrong timestamp (time of scan) instead.

Steps to reproduce

1. Add new local external storage w/ Check for changes=Once every direct access
2. Navigate to folder in web interface
3. -> Storage and all subfolders marked as pending
4. Navigate one subfolder and all its items
5. -> Subfolders are eventually updated properly with the correct timestamp ✓
6. Wait for Nextcloud to scan the remaining subfolders on its own (cron?)
7. -> Remaining subfolders have wrong timestamp, i.e. from time of scanning.

Expected behavior

Correct timestamp used in both cases

Installation method

Community Manual installation with Archive

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.1

Web server

Nginx

Database engine version

PostgreSQL

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

Updated to a major version (ex. 22.2.3 to 23.0.1)

Are you using the Nextcloud Server Encryption module?

No response

What user-backends are you using?

• Default user-backend (database)
• LDAP/ Active Directory
• SSO - SAML
• Other

Configuration report

{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "***REMOVED SENSITIVE VALUE***",
            "***REMOVED SENSITIVE VALUE***"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "overwrite.cli.url": "***REMOVED SENSITIVE VALUE***",
        "overwritewebroot": "\/",
        "htaccess.RewriteBase": "\/",
        "version": "24.0.7.1",
        "knowledgebaseenabled": false,
        "apps_paths": [
            {
                "path": "\/var\/www\/nextcloud\/apps",
                "url": "\/apps",
                "writable": true
            }
        ],
        "dbtype": "pgsql",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbtableprefix": "oc_",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "default_phone_region": "DE",
        "installed": true,
        "loglevel": 2,
        "mail_smtpmode": "sendmail",
        "maintenance": false,
        "maintenance_window_start": 1,
        "memcache.local": "\\OC\\Memcache\\APCu",
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "updater.release.channel": "stable",
        "preview_max_x": 2048,
        "preview_max_y": 2048,
        "preview_max_filesize_image": 100,
        "preview_max_memory": 256,
        "app_install_overwrite": [
            "checksum",
            "files_3d"
        ],
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 0,
            "password": "***REMOVED SENSITIVE VALUE***",
            "dbindex": 0
        }
    }
}

List of activated Apps

Enabled:
  - accessibility: 1.10.0
  - activity: 2.16.0
  - calendar: 3.5.2
  - camerarawpreviews: 0.8.0
  - checksum: 1.1.5
  - cloud_federation_api: 1.7.0
  - comments: 1.14.0
  - contacts: 4.2.2
  - dav: 1.22.0
  - federatedfilesharing: 1.14.0
  - federation: 1.14.0
  - files: 1.19.0
  - files_external: 1.16.1
  - files_rightclick: 1.3.0
  - files_sharing: 1.16.2
  - files_trashbin: 1.14.0
  - files_versions: 1.17.0
  - logreader: 2.9.0
  - lookup_server_connector: 1.12.0
  - metadata: 0.17.0
  - nextcloud_announcements: 1.13.0
  - notes: 4.5.1
  - notifications: 2.12.1
  - oauth2: 1.12.0
  - password_policy: 1.14.0
  - phonetrack: 0.7.2
  - photos: 1.6.0
  - privacy: 1.8.0
  - provisioning_api: 1.14.0
  - root_cache_cleaner: 0.1.3
  - serverinfo: 1.14.0
  - settings: 1.6.0
  - sharebymail: 1.14.0
  - support: 1.7.0
  - text: 3.5.1
  - theming: 1.15.0
  - theming_customcss: 1.12.0
  - twofactor_backupcodes: 1.13.0
  - twofactor_totp: 6.4.1
  - updatenotification: 1.14.0
  - viewer: 1.8.0
  - workflowengine: 2.6.0
Disabled:
  - admin_audit
  - circles: 22.1.1
  - contactsinteraction: 1.0.0
  - dashboard: 7.0.0
  - duplicatefinder: 0.0.15
  - encryption
  - files_3d: 0.5.0
  - files_pdfviewer: 0.8.1
  - files_videoplayer: 0.9.8
  - firstrunwizard: 2.8.0
  - ransomware_protection: 1.14.0
  - recommendations: 1.1.0
  - survey_client: 1.10.0
  - systemtags: 1.11.0
  - user_ldap
  - user_status: 1.0.1
  - weather_status: 1.1.0

Nextcloud Signing status

No errors have been found.

Nextcloud Logs

-

Additional info

Thanks!

[haarp]

Nextcloud 27.0.0, bug is still present. Sorry for the delay, @szaimen

Screenshot:

The first directory was scanned by navigating into it manually, it has the correct timestamp. The other dirs were left to be scanned by Nextcloud.

[joshtrichards]

Sounds like #1583 in essence

[DorraJaouad]

duplicate of #1583