I receive this error registering a new user in my application with entirely new/fresh ms-sql tables with jpa backed keycloak entities:

com.microsoft.sqlserver.jdbc.SQLServerException: Violation of UNIQUE KEY constraint 'UK_qyr7vp9oe4mrwm2jfmt5c5k7q'. Cannot insert duplicate key in object 'dbo.UserEntity'. The duplicate key value is (master, <NULL>)