RADish Schema 3 with a failing query

ENTITY Site
{
	string url,
	int created_at,
	int updated_at
	PRIMARY(url)
}

ENTITY User
{
	string login,
	string email,
	string crypted_password,
	string salt,
	int created_at,
	int updated_at,
	string remember_token,
	int remember_token_expires_at,
	string activation_code,
	int activated_at,
	string state,
	int deleted_at,
	string name_prefix,
	string name_first,
	string name_middle,
	string name_last,
	int birthdate,
	int fb_user_id,
	string email_hash
	PRIMARY(login)
}

ENTITY Account
{
	string username,
	string password,
	int created_at,
	int updated_at,
	FOREIGN KEY user_id REF User,
	FOREIGN KEY site_id REF Site,
	string t
	PRIMARY(username, site_id)
}

ENTITY Comment
{
	FOREIGN KEY author_id REF User,
	string author_name,
	string author_email,
	string title,
	string body,
	int posted_at,
	int created_at,
	int updated_at,
	FOREIGN KEY site_id REF Site,
	string url,
	string signature,
	bool has_merit
	PRIMARY(signature)
}

ENTITY Friendship
{
	FOREIGN KEY user_id REF User,
	FOREIGN KEY friend_id REF User,
	int created_at,
	int updated_at,
	FOREIGN KEY site_id REF Site
	PRIMARY(user_id, friend_id)
}

ENTITY ProfileItem
{
	FOREIGN KEY user_id REF User,
	FOREIGN KEY site_id REF Site,
	string name,
	string data,
	int created_at,
	int updated_at
	PRIMARY(user_id, site_id, name)
}

ENTITY Viewership
{
	int rating,
	int created_at,
	int updated_at,
	FOREIGN KEY user_id REF User,
	FOREIGN KEY comment_id REF Comment
	PRIMARY(user_id, comment_id)
}


QUERY users
FETCH User
	OF Account BY user_id
WHERE Account = [this]