Documentation for 'cleanup' configuration option

Hi,

seems like the documentation for the 'cleanup' configuration option ist not correct:

cleanup: false - whether the dump should be reloaded before each test

It think more correct would be:

cleanup: false - whether all database tables should be dropped

I am not quite sure if this dropping happens once or before each test.
The docs mention the 'clearing' of the database, but not in connection with this option.

Make this more precise would be great!

Locate the documentation entry for the `cleanup` configuration option and inspect the module behavior that determines when database tables are dropped or cleared. Confirm whether cleanup happens once or before each test, then update the option description to state the behavior precisely.

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