**Steps to replicate the issue**:
On Pywikibot stable (8.0.1) run:
pwb.py clean_sandbox -site:wikiquote:es -delay:15 -summary:"Bot: limpieza automática de la zona de pruebas"
**What happens?**:
The bot [[ https://es.wikiquote.org/?diff=454666 | uses an incorrect content ]] despite [[ https://phabricator.wikimedia.org/diffusion/PWBC/browse/stable/scripts/clean_sandbox.py$78-79 | that not being the correct content ]]. It looks it's picking the es.wikipedia config and ignoring the per-project ones.
**What should have happened instead?**:
Correct content used instead. All Spanish projects where configured in {1f6e93a}
**Happening too in:**
* [[ https://es.wikibooks.org/w/index.php?title=Wikilibros:Zona_de_pruebas&diff=prev&oldid=409375 | es.wikibooks ]]
* [[ https://es.wikinews.org/w/index.php?title=Wikinoticias:Zona_de_pruebas&diff=next&oldid=704153 | es.wikinews ]]
* [[ https://es.wikiquote.org/w/index.php?title=Wikiquote:Zona_de_pruebas&diff=prev&oldid=454667 | es.wikiquote ]]
* [[ https://es.wikisource.org/w/index.php?title=Wikisource:Zona_de_pruebas/5&diff=prev&oldid=1301953 | es.wikisource ]]
* [[ https://es.wikiversity.org/w/index.php?title=Wikiversidad:Zona_de_pruebas&diff=prev&oldid=170348 | es.wikiversity ]]
**Software version**
Pywikibot stable (db3977e) - missing 211b93e which is unrelated.
```
$ python3 pywikibot-core/pwb.py version -v
Pywikibot: [https] r-pywikibot-core (db3977e, g17851, 2023/03/04, 16:38:33, OUTDATED)
Release version: 8.0.1
```
Thank you.