javeme commented on issue #2163:
URL: 
https://github.com/apache/incubator-hugegraph/issues/2163#issuecomment-1466323571

   Thanks for your report.
   
   Reproducible process:
   ```java
   schema = graph.schema();
   
   schema.propertyKey("age").asInt().ifNotExist().create();
   schema.propertyKey("year").asInt().ifNotExist().create();
   
   schema.vertexLabel("person").properties("age").nullableKeys("age").create();
   
schema.indexLabel("personbyage").onV("person").by("age").shard().ifNotExist().create();
   
   
schema.edgeLabel("knows").sourceLabel("person").targetLabel("person").properties("year").ifNotExist().create();
   
schema.edgeLabel("teach").sourceLabel("person").targetLabel("person").properties("year").ifNotExist().create();
   
   Vertex person1 = g.addV("person").property("age", 12).next();
   Vertex person2 = g.addV("person").property("age", 23).next();
   Vertex person3 = g.addV("person").property("age", 24).next();
   
   g.addE("knows").from(person2).to(person1).property("year", 1).next();
   g.addE("teach").from(person3).to(person1).property("year", 2).next();
   ```
   
   ```java
   import org.apache.hugegraph.traversal.optimize.HugeVertexStepStrategy
   
   g.withoutStrategies(HugeVertexStepStrategy).E().bothV().not(__.inE('teach'))
   g.withoutStrategies(LazyBarrierStrategy).E().bothV().not(__.inE('teach'))
   
   
g.withoutStrategies(LazyBarrierStrategy,HugeVertexStepStrategy).E().bothV().not(__.inE('teach'))
   ```


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