Rails - Aug 2011 - Rails 3.1 reversible migrations and change_table

Hi,

is the following migration really supposed to be irreversible?

class AddColumnsToUsers < ActiveRecord::Migration
  def change
    change_table :users do |t|
      t.integer :foo
      t.integer :bar
    end
  end
end

I''m using Rails 3.1 RC6 and when trying to redo this migration
I''m
getting ActiveRecord::IrreversibleMigration error.

Cheers,
Szymon

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