Database Session Strategy misleading in Split Config Documentation.

[abmummaneni]

The split config documentation states that the configuration will

make Auth.js be able to both run some of its code in an edge runtime, but also use a database to store its sessions.

However, shortly after the docmuentation forces session: { strategy: "jwt" }, in the config. Therefore the session is not saved in the database. Is this an error in the documentation, or is the session still supposed to be uploaded to the database?