Embedded _id field in query does not get converted to ObjectId BSON

[danwdart]

This should return the right field type whether I pass in {$ne: "string"} or "string"

api-mongodb/lib/index.js

Lines 501 to 507 in fd34cd4

	DataStore.prototype.castToBSON = function (obj) {
	// TODO: Do we need to handle casting for all fields, or will `_id` be the only BSON specific type?
	// this is starting to enter ODM land...
	if (typeof obj._id === 'string' && ObjectID.isValid(obj._id) && obj._id.match(/^[a-fA-F0-9]{24}$/)) {
	obj._id = ObjectID.createFromHexString(obj._id)
	}
	}