title: Laravel Cashier - publish migration results in "cannot declare class CreateCustomersColumns"
body: <p>I have a fresh Laravel installation and I've added Cashier to my project.</p>
  
  <p>Since the <code>Users</code> model on my app won't have a stripe connection, but rather an <code>Accounts</code> model, I need to alter their migration to add columns to <code>Accounts</code> instead of <code>Users</code></p>
  
  <p>The documentation says to run:</p>
  
  <p><code>php artisan vendor:publish --tag="cashier-migrations"</code></p>
  
  <p>which adds the two migration files to <code>database/migrations</code></p>
  
  <p>From there I can change <code>users</code> to <code>accounts</code> in the migration file.</p>
  
  <p>When I try to run <code>php artisan migrate</code>, I get:</p>
  
  <p><code>Whoops\Exception\ErrorException  : Cannot declare class CreateCustomerColumns, because the name is already in use</code></p>
  
  <p>This problem only goes away when I delete the migration files, but then the new columns are added to <code>users</code>.</p>