Dave Bechberger created TINKERPOP-3101:
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Summary: `union()` with a mutation step as the first option is
changing the output
Key: TINKERPOP-3101
URL: https://issues.apache.org/jira/browse/TINKERPOP-3101
Project: TinkerPop
Issue Type: Bug
Affects Versions: 3.7.1
Reporter: Dave Bechberger
When you use a `drop()` step as the first subtraversal it is impacting the
subsequent subtraversals. In the example below I would have expected this to
return the `valueMap()` of the incoming solutions since this is a branch step.
{code:java}
\,,,/
(o o)
-----oOOo-(3)-oOOo-----
plugin activated: tinkerpop.server
plugin activated: tinkerpop.utilities
plugin activated: tinkerpop.tinkergraph
gremlin> g = TinkerFactory.createModern().traversal()
==>graphtraversalsource[tinkergraph[vertices:6 edges:6], standard]
gremlin> g.V().union(drop(), valueMap())
==>[]
==>[]
==>[]
==>[]
==>[]
==>[] {code}
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