several questions about AppDataService.php: a. In BasicAppDataService and PartuzaAppDataService, in getPersonData, we don't check if the keys are valid (as we do in deletePersonData and updatePersonData). Why? b. There is no documentation to the function deletePersonData. From reading the implementations I understood that it should delete a field or fields of data related to a user or group of users. Are there any functions that delete entire users? c. The documentation of updatePersonData in AppDataService.php does not match the declaration (for example, there is no groupId in the documentation).
