[keycloak-user] Duplicate User showing in admin console after user import via federation

Hi, This is my first time using a mailing list, and my colleagues found it hysterical that I'd never heard of the concept before, so apologies if I'm doing something incorrectly. I have based my code off of https://github.com/keycloak/keycloak/tree/master/examples/providers/user-... I've been reading Section 11.X to help troubleshoot http://www.keycloak.org/docs/3.4/server_development/index.html#credential... Here are (I think) all of the relevant methods I overrode. I excluded methods I figured were irrelevant. https://pastebin.com/0CF1n4xy My goal: Using keycloak 3.4, write a provider that allows me to log in with credentials in a simple key/value properties file. Once a user logs in for the first time while keycloak is up, keycloak will create a new user and add it to the UserLocalStorage so the next time the user logs in, it will query the UserLocalStorage to retrieve the user and skip hitting the external store. The end goal is to hook into our SQL DB and slowly migrate users on a per-login basis. I've got all of this working, except whenever I go into the admin console and go to Users -> View All Users, I see duplicates of all of the users that have been migrated over - same ID, same username. I had thrown debug statements all over my overridden methods and the getUsers method seemed to be returning the correct (non duplicate) amount of accounts, but the 'isConfiguredFor' coming from the CredentialInputValidator interface was being called twice for each account, but couldn't figure out why. An important note, once I unlink the users and remove the provider, the users that remain in the 'Users -> View All' display no duplicates. Any help would be sincerely appreciated. Thank you!