Incorrectly comparing a counted value with predicate outside()

[zhengyingying]

Please include configurations and logs if available.

For confirmed bugs, please report:

• Version: 0.6.3
• Storage Backend: inmemory
• Mixed Index Backend:
• Link to discussed bug:
• Expected Behavior: I expect all vertices can be returned.
• Current Behavior: Only return one vertex.
• Steps to Reproduce:

I count the number of incoming edges of each vertex and filter vertices with a predicate outside(-1, -2). If a value is less than the first provided number (i.e., -1) or greater than the second (i.e., -2), outside(-1, -2) can filter it. Therefore, we expect all vertices can be returned because the number of their incoming edges should be greater than -2. However, only one vertex is returned.

gremlin> :> g.V().where(__.inE().count().is(outside(-1, -2)))
==>v[4312]

Stack Trace (if you have one)

Vertex bob = g.addV("person").property("name", "Bob").next(); // v[4312]
Vertex alice = g.addV("person").property("name", "Alice").next(); // v[4216]
Vertex book = g.addV("book").property("name", "book1").next(); // v[8312]
Edge edge1 = g.addE("knows").from(bob).to(alice).next();
Edge edge2 = g.addE("write").from(alice).to(book).next();
g.E(edge2).property("duration", new Float(0.94461)).iterate();