title: RailsAdmin: ActiveRecord::RecordNotUnique , inserts id when creating user #2972
body: <p>I seem to be getting a problem when inserting into the users table. I am not sure why, but only that it is getting the current user's id (confirmed by seeding additional user. I know the solution would be to remove adding the id when adding users, but I don't know how and have been trying to find the right file for 30 minutes. I am using MYSQL. The error is below:</p>
  
  <pre><code>ActiveRecord::RecordNotUnique in RailsAdmin::MainController#new
  Mysql2::Error: Duplicate entry '1' for key 'PRIMARY': INSERT INTO `users`
  </code></pre>
  
  <p>Any possible solution to this? I am willing to fix if someone just points me to the right file(s). Thanks!</p>