Github user spmallette commented on the pull request:
https://github.com/apache/incubator-tinkerpop/pull/243#issuecomment-190429840
Note the commit above that fixes the badly named test. easy to fix with
`git mv`:
```text
$ git mv -f
gremlin-core/src/test/java/org/apache/tinkerpop/gremlin/process/traversal/step/sideEffect/GroupSideEffectStepV3D0Test.java
gremlin-core/src/test/java/org/apache/tinkerpop/gremlin/process/traversal/step/sideEffect/GroupSideEffectStepV3d0Test.java
```
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