Github user dkuppitz commented on the issue:
https://github.com/apache/tinkerpop/pull/486
You know what, I will revert the change and not implement `PathProcessor`
in `SimplePathStep`. Here's why: `IncidentToAdjacentStrategy` should only rely
on the `getRequirements()` result, because otherwise this problem would come up
again with `VertexProgramSteps`.
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