ActiveStorage attach method

rubyonrails-talk
1

If you create a new ActiveStorage model and then send the :attach method to it, will there be any blobs left in the database when the transaction is rolled back? In a scenario like this:

class User < ApplicationRecord
  has_one_attached :avatar
  validates :name, presence: true
end

class UsersController < ApplicationController
  def create
    user = User.new(name: '', handle: 'peterbaker')
    user.avatar.attach(io: File.open("/path/to/face.jpg"), filename: "face.jpg", content_type: "image/jpg") 
    user.save!
  end
end