rails sqlite migration bug boolean

bug.md

class CreateMemberships < ActiveRecord::Migration
  def change
    create_table :memberships do |t|
      t.boolean :needs_emails, default:true
      t.belongs_to :user
      t.belongs_to :tag
      t.timestamps null:false
    end
  end
end

renders in schema.rb : t.boolean "needs_emails", default: true

class CreateMemberships < ActiveRecord::Migration
  def change
    create_table :memberships do |t|
      t.belongs_to :user
      t.belongs_to :tag
      t.timestamps null:false
      t.boolean :needs_emails, default:true
    end
  end
end

renders in schema.rb : t.boolean "needs_emails", default: false