Github user spmallette commented on the issue: https://github.com/apache/tinkerpop/pull/538 I see that you added new Gryo registrations. I assume that GraphSON can serialize `ProjectedTraverser` as there is a general serializer for that. What about `MultiComparator` - is that a concern? To extend on this issue given my recent work in the testing of IO, I'm wondering why certain registrations in Gryo don't require equal "registrations" in GraphSON. Are our tests coming up short in ensuring they have parity? Are we unnecessarily registering in Gryo sometimes? I noticed there's no additional tests. I assume that this is because existing tests cover this functionality and no new breaks equals no problems.
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