[besucherin]

As of software version 4.2.8110 (4f749ed9be, 12/12/16) on the Aura One, you need to add a whole extra ,'' for the empty user entry to work.

Is there a specific reason one of those strings has a space instead of being empty?

BTW, the new schema:
TABLE user(UserID TEXT NOT NULL,
UserKey TEXT NOT NULL,
UserDisplayName TEXT,
UserEmail TEXT,
___DeviceID TEXT,
FacebookAuthToken TEXT,
HasMadePurchase BIT DEFAULT FALSE,
IsOneStoreAccount BIT DEFAULT FALSE,
IsChildAccount BIT DEFAULT FALSE,
RefreshToken TEXT,
AuthToken TEXT,
AuthType TEXT,
Loyalty BLOB,
IsLibraryMigrated BIT NOT NULL DEFAULT true,
SyncContinuationToken TEXT,
Subscription INT NOT NULL DEFAULT 0,
LibrarySyncType TEXT,
LibrarySyncTime TEXT,
SyncTokenAppVersion TEXT,
PRIMARY KEY (UserID));