Undefined index in _votingapi_get_standard_results

I'm getting undefined index for "value_type" on line 432 of votingapi.module:

$cache[$result['tag']][$result['value_type']]['option-'. $result['value']] = $result['score'];

I believe it's because value_type is not included in the select on line 426:

$sql  = "SELECT v.tag, v.value, COUNT(1) AS score ";

This omission is specific to value_type=option part of that function; the points/percentage code block correctly included value_type. Of course, you could just hardcode "option" on line 432 since that's the only possible value type for that section.