> db.foo.ensureIndex({a:"text",b:1})
WriteResult({ "nInserted" : 1 })
> db.foo.insert({a:"hello world",b:1})
WriteResult({ "nInserted" : 1 })
> db.foo.find({$text:{$search:"hello"},b:1})
{ "_id" : ObjectId("531518053d6c9988adb3eed4"), "a" : "hello world", "b" : 1 }
> db.foo.find({$text:{$search:"hello"},b:1}).explain()
{
	"cursor" : "TextCursor",
	"n" : 1,
	"nscannedObjects" : 0, // Incorrect, should be 1 (query fetches "_id" and "a" from document)
	"nscanned" : 1,
	"nscannedObjectsAllPlans" : 0,
	"nscannedAllPlans" : 1,
	"scanAndOrder" : false,
	"nYields" : 0,
	"nChunkSkips" : 0,
	"millis" : 0,
	"server" : "Rassi-MacBook-Pro.local:27017",
	"filterSet" : false
}
>