Undercloud install fails with ERROR related to incorrect database name '#mysql50#.config'

Issue

Undercloud install fails with ERROR related to incorrect database name '#mysql50#.config`.

Snippet of the error:

2023-06-20 11:04:30.074 930159 WARNING tripleoclient.v1.tripleo_deploy.Deploy [  admin] fatal: [undercloud]: FAILED! => {"ansible_job_id": "861142503619.979839", "attempts": 21, "changed": false, "finished": 1, "msg": "Paunch failed with config_id tripleo_step2", "rc": 1,...
... mysqlcheck: Got error: 1102: Incorrect database name '#mysql50#.config' when selecting the database\n\nstderr: FATAL ERROR: Upgrade failed\n\n",...
... "mysqlcheck: Got error: 1102: Incorrect database name '#mysql50#.config' when selecting the database"]}

The ERROR could also be related to some other dot starting name, like #mysql50#.cache.