[Bug]: occ files:scan --all exception: Argument #1 ($parent) must be of type int

⚠️ This issue respects the following points: ⚠️

• This is not a troubleshooting question, general support matter, or webserver/proxy problem, but likely a bug (if unsure, ask the Community Help Forum).
• This issue is not already reported on Github OR solved at the Community Help Forum (I've searched!).
• I'm using a maintained major version of Nextcloud Server and tested against the latest patch level. (Supported major versions and current patch levels).
• I agree to follow Nextcloud's Code of Conduct.
• I've tried my best to provide clear reproduction steps that someone unfamiliar with this bug could use to reproduce it.

Bug description

If I run php occ files:scan --all I get an exception:

$ php occ files:scan --all
Starting scan for user 1 out of 6 (a)
Starting scan for user 2 out of 6 (m)
Starting scan for user 3 out of 6 (o)
Starting scan for user 4 out of 6 (r)
Starting scan for user 5 out of 6 (s)
An unhandled exception has been thrown:
TypeError: OC\Files\Cache\CacheQueryBuilder::whereParent(): Argument #1 ($parent) must be of type int, null given, called in /var/www/virtual/h/cloud.example.com/lib/private/Files/Cache/Cache.php on line 1049 and defined in /var/www/virtual/h/cloud.example.com/lib/private/Files/Cache/CacheQueryBuilder.php:89

Steps to reproduce

1. Run the command php occ files:scan --all in the nextcloud web root directory

Expected behavior

No exception

Nextcloud Server version

34

Operating system

RHEL/CentOS

PHP engine version

PHP 8.5

Web server

Nginx

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?

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

Configuration report

$ php occ config:list system
Nextcloud or one of the apps require upgrade - only a limited number of commands are available
You may use your browser or the occ upgrade command to do the upgrade
{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "cloud.example.com",
            "owncloud.example.com"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "overwrite.cli.url": "https:\/\/cloud.example.com",
        "dbtype": "mysql",
        "version": "34.0.2.1",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "mysql.utf8mb4": true,
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "default_phone_region": "DE",
        "memcache.local": "\\OC\\Memcache\\APCu",
        "maintenance": true,
        "theme": "",
        "loglevel": 0,
        "mail_smtpmode": "sendmail",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "587",
        "mail_smtpauth": 1,
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "mail_sendmailmode": "pipe",
        "mail_smtpauthtype": "PLAIN",
        "trashbin_retention_obligation": "auto, 30",
        "updater.release.channel": "stable",
        "twofactor_enforced": "true",
        "twofactor_enforced_groups": [
            "admin"
        ],
        "preview_max_x": 512,
        "preview_max_y": 512,
        "preview_max_scale_factor": 2,
        "twofactor_enforced_excluded_groups": [],
        "htaccess.RewriteBase": "\/",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": "0",
            "timeout": "1.5"
        },
        "filelocking.enabled": "true",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
        "maintenance_window_start": 4,
        "app_install_overwrite": [
            "circlesdb",
            "unsplash"
        ],
        "simpleSignUpLink.shown": false,
        "serverid": "146",
        "updater.secret": "***REMOVED SENSITIVE VALUE***"
    }
}

List of activated Apps

$ php occ app:list
Nextcloud or one of the apps require upgrade - only a limited number of commands are available
You may use your browser or the occ upgrade command to do the upgrade
Enabled:
  - activity: 7.0.0
  - admin_audit: 1.24.0
  - appointments: 2.7.4
  - appstore: 1.0.0
  - autocurrency: 1.8.3
  - bruteforcesettings: 7.0.0
  - calendar: 6.5.2
  - calendar_resource_management: 0.12.1
  - circles: 34.0.0
  - cloud_federation_api: 1.18.0
  - collectives: 4.4.2
  - comments: 1.24.0
  - contacts: 8.7.5
  - contactsinteraction: 1.15.0
  - cospend: 4.0.2
  - dashboard: 7.14.0
  - dav: 1.39.0
  - deck: 1.18.3
  - 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
  - gpoddersync: 3.17.0
  - groupfolders: 22.0.5
  - logreader: 7.0.0
  - lookup_server_connector: 1.22.0
  - nextcloud_announcements: 6.0.0
  - notes: 6.0.1
  - notifications: 7.0.0-dev.1
  - notify_push: 1.3.5
  - oauth2: 1.22.0
  - office: 1.0.0
  - password_policy: 6.0.0-dev.0
  - phonetrack: 1.3.1
  - photos: 7.0.0
  - privacy: 6.0.0-dev.1
  - profile: 1.3.0
  - provisioning_api: 1.24.0
  - quota_warning: 1.24.0
  - 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
  - tasks: 0.18.1
  - text: 8.0.0
  - theming: 2.9.0
  - twofactor_backupcodes: 1.23.0
  - twofactor_nextcloud_notification: 8.0.0
  - 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:
  - app_api: 34.0.0 (installed 32.0.0)
  - encryption: 2.22.0
  - files_rightclick: 0.15.1 (installed 1.6.0)
  - holiday_calendars: 0.3.0 (installed 0.3.0)
  - suspicious_login: 12.0.0-dev.0
  - testing: 1.23.0
  - unsplash: 3.1.0 (installed 3.1.0)
  - user_ldap: 1.25.0
  - user_usage_report: 4.0.0 (installed 4.0.0)

Nextcloud Signing status

No errors have been found.

Nextcloud Logs

Additional info

Stacktrace:

#0 /var/www/virtual/h/cloud.example.com/lib/private/Files/Cache/Cache.php(1049): OC\Files\Cache\CacheQueryBuilder->whereParent(NULL)
#1 /var/www/virtual/h/cloud.example.com/lib/private/Files/Cache/Cache.php(1025): OC\Files\Cache\Cache->calculateFolderSizeInner('', Object(OC\Files\Cache\CacheEntry))
#2 /var/www/virtual/h/cloud.example.com/lib/private/Files/Cache/Cache.php(971): OC\Files\Cache\Cache->calculateFolderSize('', NULL)
#3 /var/www/virtual/h/cloud.example.com/lib/private/Files/Utils/Scanner.php(236): OC\Files\Cache\Cache->correctFolderSize('')
#4 /var/www/virtual/h/cloud.example.com/apps/files/lib/Command/Scan.php(169): OC\Files\Utils\Scanner->scan('/stefan', true, Object(Closure))
#5 /var/www/virtual/h/cloud.example.com/apps/files/lib/Command/Scan.php(260): OCA\Files\Command\Scan->scanFiles('stefan', '/stefan', NULL, Object(Symfony\Component\Console\Output\ConsoleOutput), Object(Closure), false, true)
#6 /var/www/virtual/h/cloud.example.com/3rdparty/symfony/console/Command/Command.php(326): OCA\Files\Command\Scan->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#7 /var/www/virtual/h/cloud.example.com/core/Command/Base.php(222): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#8 /var/www/virtual/h/cloud.example.com/3rdparty/symfony/console/Application.php(1098): OC\Core\Command\Base->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#9 /var/www/virtual/h/cloud.example.com/3rdparty/symfony/console/Application.php(324): Symfony\Component\Console\Application->doRunCommand(Object(OCA\Files\Command\Scan), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#10 /var/www/virtual/h/cloud.example.com/3rdparty/symfony/console/Application.php(175): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#11 /var/www/virtual/h/cloud.example.com/lib/private/Console/Application.php(209): Symfony\Component\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#12 /var/www/virtual/h/cloud.example.com/console.php(92): OC\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput))
#13 /var/www/virtual/h/cloud.example.com/occ(33): require_once('/var/www/virtua...')
#14 {main}

I updated to 34.0.3 - still the same exception