Error sending mails for new votes in polls created by registered users

It looks like commit d8f8d79ee6ac99fb353121efdde729d094c8303f as polls for registered users should use $account->mail. Line 693 should be is

drupal_mail('makemeeting', 'new_vote', $account->mail, user_preferred_language($account), $params);

instead of

drupal_mail('makemeeting', 'new_vote', $node->user_mail, user_preferred_language($account), $params);