When applying a user segments involving conversions (such as
visit participated in funnel), the number of goal conversions. Here is an example:
-> maybe the issue is because the archiver does not use necessary
group by https://github.com/piwik/piwik/blob/3.2.0-b3/core/DataAccess/LogQueryBuilder.php#L68-L77
it likely doesn't use a subselect, but should use a subselect grouped by
CONCAT(log_conversion.idvisit, '_' , log_conversion.idgoal, '_', log_conversion.buster) or so.