A get to the endpoint of a missing database, creates the database!

[FrancescJR]

Steps to reproduce:

1. Authenticate yourself to the realm server like explained here: https://docs.realm.io/sync/graphql-web-access/how-to-use-the-api#query
2. Get request to /graphql/:path where path is a missing database.

expected result: Invalid options provided to ApolloServer: The schema for Realm at path /:path is empty.
result: the same error message but then a database has been created!! and with TYPE=full, which makes it impossible to create it again...