Query Error: Instantiation of [simple type, class io.druid.query.topn.TopNQueueValue failed

[Nishant Bangarwa]

Steps to reproduce with wikiticker dataset -

1. Add split on time and create line chart
2. Add split on dimension isRobot
3. Add a filter dimension on isRobot select value - true
   Attached snapshot.

[Piotr Turek]

I am able to reproduce this reliably on all our datasets.