rails/rails — pull request #16666 by DanOlson (2014-08-23 20:21:53+00:00)
Title: Fix PredicateBuilder::ArrayHandler so that it uses the correct Arel pred...

Fixes #16580

PredicateBuilder::ArrayHandler was using the incorrect Arel predicate (Arel::Nodes::Equality) when given a nested array. This fix restores the behavior on 4.1 stable and will utilize Arel::Nodes::In when given a nested array.