When deleting labels, the string labels are not removed properly

[iamshoXy]

Describe the issue

Upon recreating a label, the strings still have the label assigned to it in the base language. (the one that is used for the source strings)
Clicking on the Test 5 label shows: No strings found!

Base language

Another language

Label page

Strings status of Label Test 5

I already tried

• I've read and searched the documentation.
• I've searched for similar filed issues in this repository.

Steps to reproduce the behavior

1. Navigate to the Labels page
2. Create a label
3. Assign a label to any string
4. Delete the label and create it again
5. Compare two languages, the base language should still have strings assigned to the label while the other languages don't

Expected behavior

if a label is deleted, the label should be removed from all strings in the base language.

Screenshots

No response

Exception traceback

No exception

How do you run Weblate?

Docker container

Weblate versions

• Weblate: 5.4.2
• Django: 4.2.10
• siphashc: 2.4.1
• translate-toolkit: 3.12.2
• lxml: 5.1.0
• pillow: 10.2.0
• nh3: 0.2.15
• python-dateutil: 2.8.2
• social-auth-core: 4.5.3
• social-auth-app-django: 5.4.0
• django-crispy-forms: 2.1
• oauthlib: 3.2.2
• django-compressor: 4.4
• djangorestframework: 3.14.0
• django-filter: 23.5
• django-appconf: 1.0.6
• user-agents: 2.2.0
• filelock: 3.13.1
• rapidfuzz: 3.6.1
• openpyxl: 3.1.2
• celery: 5.3.6
• django-celery-beat: 2.5.0
• kombu: 5.3.5
• translation-finder: 2.16
• weblate-language-data: 2024.3
• html2text: 2020.1.16
• pycairo: 1.26.0
• PyGObject: 3.46.0
• diff-match-patch: 20230430
• requests: 2.31.0
• django-redis: 5.4.0
• hiredis: 2.3.2
• sentry-sdk: 1.40.5
• Cython: 3.0.8
• misaka: 2.1.1
• GitPython: 3.1.42
• borgbackup: 1.2.7
• pyparsing: 3.1.1
• ahocorasick_rs: 0.22.0
• python-redis-lock: 4.0.0
• charset-normalizer: 3.3.2
• Python: 3.12.2
• Git: 2.39.2
• psycopg: 3.1.18
• psycopg-binary: 3.1.18
• phply: 1.2.6
• ruamel.yaml: 0.18.6
• tesserocr: 2.6.2
• boto3: 1.34.47
• zeep: 4.2.1
• aeidon: 1.13
• iniparse: 0.5
• mysqlclient: 2.2.4
• Mercurial: 6.6.3
• git-svn: 2.39.2
• git-review: 2.3.1
• PostgreSQL server: 16.2
• Database backends: django.db.backends.postgresql
• PostgreSQL implementation: psycopg3 (binary)
• Cache backends: default:RedisCache, avatar:FileBasedCache
• Email setup: django.core.mail.backends.smtp.EmailBackend: smtp.gmail.com
• OS encoding: filesystem=utf-8, default=utf-8
• Celery: redis://cache:6379/1, redis://cache:6379/1, regular
• Platform: Linux 6.1.0-17-arm64 (aarch64)

Weblate deploy checks

SystemCheckError: System check identified some issues:

CRITICALS:
?: (weblate.E003) Cannot send e-mail ((535, b'5.7.8 Username and Password not accepted. For more information, go to\n5.7.8  https://support.google.com/mail/?p=BadCredentials fs7-20020a05600c3f8700b00414038162e1sm522258wmb.23 - gsmtp')), please check EMAIL_* settings.
        HINT: https://docs.weblate.org/en/weblate-5.4.2/admin/install.html#out-mail

INFOS:
?: (weblate.I028) Backups are not configured, it is highly recommended for production use
        HINT: https://docs.weblate.org/en/weblate-5.4.2/admin/backup.html

System check identified 2 issues (1 silenced).

Additional context

No response

[github-actions]

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