Github user arunmahadevan commented on the issue:
https://github.com/apache/storm/pull/2533
+1
Apparently the topology needs to use tick tuple to see the issue. Ran
RollingTopWords which uses tick-tuples and can clearly observe the difference.
**Before patch**
<img width="1429" alt="screen shot 2018-01-25 at 2 41 47 pm"
src="https://user-images.githubusercontent.com/6792890/35416447-f6a09fb4-01dd-11e8-9d73-d4f736865a8b.png">
**After patch**
<img width="1425" alt="screen shot 2018-01-25 at 2 42 04 pm"
src="https://user-images.githubusercontent.com/6792890/35416453-feab19fa-01dd-11e8-95c7-901d4b9bc9bb.png">
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