refreshRelated() causes an id to be changed from string to int, causing an unnecessary update query.

class Article extends Doctrine_Record
{
    public function setTableDefinition()
    {
        $this->hasColumn('title', 'string', 255);
        $this->hasColumn('body', 'string', 4096);
    }

    public function setUp()
    {
        $this->hasMany('Comment as Comments', array(
            'local' => 'id',
            'foreign' => 'articleId',
        ));
    }
}

class Comment extends Doctrine_Record
{
    public function setTableDefinition()
    {
        $this->hasColumn('comment', 'string', 4096);
        $this->hasColumn('articleId', 'integer');
    }

    public function setUp()
    {
        $this->hasOne('Article', array(
            'local' => 'articleId',
            'foreign' => 'id',
        ));
    }

    public function preUpdate($e)
    {
        throw new Exception('should not get here');
    }

}

$a = new Article();
$a->title = 'Hi';
$a->body = 'There';
$a->save();

$c = new Comment();
$c->comment = '1st comment';
$c->articleId = $a->id;
$c->save();

$a->refreshRelated('Comments');

$a->title = 'Hello';
$a->save();