If you look at the above link, the definition of fromVertices says that it should select all vertices from where an edge( that was selected in the previous step) originated.
In the example discussed, The "married" edge in this case returns Alice and Charlie which is OK.
Following which if you write query.fromVertices({name:"Alice}) you get Alice vertex which is also OK
Question
But now if you write query.fromVertices([{name:'Alice'},{name:'Charly'}]) why would you get 8 vertices as shown in the execution result.
Shouldn't it only return Alice and Charly vertices ?
Ok. Got the clarification on this https://github.com/arangodb/arangodb/issues/1531
Seems like an issue.