http://lists.scsys.co.uk/pipermail/dbix-class/2013-June/011374.html)
- Fix multiple edge cases of complex prefetch combining incorrectly
with correlated subquery selections
- - Fix multiple edge cases steming from interaction of a non-selecting
+ - Fix multiple edge cases stemming from interaction of a non-selecting
order_by specification and distinct and/or complex prefetch
- Clarify ambiguous behavior of distinct when used with ResultSetColumn
i.e. $rs->search({}, { distinct => 1 })->get_column (...)