Cannot create mappings with same name in different namespaces

[concaf]

Describe the bug
Ambassador does not allow 2 mappings with the same name with different/same config in different namespaces. An error pops up saying -

CONFIGURATION ERRORS
httpbin.ingress2.1: <Mapping httpbin.ingress2.1> defines Mapping httpbin, which is already defined by httpbin.ingress1.1

To Reproduce
Steps to reproduce the behavior:

1. Create 2 mappings with the same name (but not necessarily same config) in different namespaces. Example:

Create namespaces:

kubectl create ns ingress1
kubectl create ns ingress2

and then create the following mappings:

apiVersion: getambassador.io/v2
kind: Mapping
metadata:
  name: httpbin
  namespace: ingress2
spec:
  host_rewrite: hb.com
  prefix: /hb2/
  service: http://hb.com

and

apiVersion: getambassador.io/v2
kind: Mapping
metadata:
  name: httpbin
  namespace: ingress1
spec:
  host_rewrite: httpbin.org
  prefix: /hb/
  service: http://httpbin.org                                                                                                                                                                                                                                 

Expected behavior
Both mappings should work fine

Versions (please complete the following information):

• Ambassador: 1.0.0 and master and since the beginning of time??