Rollback doesn't remove tables created via `change()`

Just wasted half-hour because of this bug. The title is quite self-explanatory.

Make some migration which creates a table:

<?php

use Phinx\Migration\AbstractMigration;

class CreateTestTable extends AbstractMigration
{
    public function change()
    {
        $this->table('test')
            ->addColumn('name', 'string')
            ->save();
    }
}

Then do migrate and rollback. At rollback it will simply delete all columns but id and keep the table.

Start by reproducing the migration shown in AbstractMigration::change(), using table('test')->addColumn(...)->save(), then run migrate followed by rollback. Trace how the change() operation handles the table during rollback. Done means the rollback removes the test table rather than leaving an empty table with only its id column.