Implements hook_field_attach_prepare_translation_alter().
function poll_field_attach_prepare_translation_alter(&$entity, $context) {
if ($context['entity_type'] == 'node' && $entity->type == 'poll') {
$entity->choice = $context['source_entity']->choice;
foreach ($entity->choice as $i => $choice) {
$entity->choice[$i]['chvotes'] = 0;
}
}
}