Description of problem:
Given a existing replication controller named "test-a" specifies selector as "a=b" and has created pods, try to create another controller named "test-b", which also contains selector "a=b" and other selector "c=d" as well, then "test-b" cannot create pods correctly

Version-Release number of selected component (if applicable):
openshift/oc v1.0.6-997-gff3b522
kubernetes v1.2.0-alpha.1-1107-g4c8e6f4

How reproducible:
Always


Steps to Reproduce:
1. oc login and create a project
2. Create rc "test-a" first
1> $ cat test-a.yaml
apiVersion: v1
kind: ReplicationController
metadata:
  name: test-a
spec:
  replicas: 1
  selector:
    a: b
  template:
    metadata:
      labels:
        a: b
    spec:
      containers:
      - image: yapei/hello-openshift
        name: test-a
      restartPolicy: Always
2 > $ oc create -f test-a.yaml

3. Then create rc "test-b"
1> $ cat test-b.yaml
apiVersion: v1
kind: ReplicationController
metadata:
  name: test-b
spec:
  replicas: 1
  selector:
    a: b
    c: d
  template:
    metadata:
      labels:
        a: b
        c: d
    spec:
      containers:
      - image: yapei/hello-openshift
        name: test-b
      restartPolicy: Always
2> oc create -f test-b.yaml

4. Check rc and pods
1> $ oc get rc
2> $ oc get pods
3> $ oc describe rc test-b

Actual results:
4.
2> Only pod of "test-a" exist
NAME           READY     STATUS    RESTARTS   AGE
test-a-3lknc   1/1       Running   0          39m
3> 
Name:		test-b
Namespace:	xxia-proj2
Image(s):	yapei/hello-openshift
Selector:	a=b,c=d
Labels:		a=b,c=d
Replicas:	0 current / 1 desired
Pods Status:	0 Running / 0 Waiting / 0 Succeeded / 0 Failed
No volumes.
Events:
  FirstSeen	LastSeen	Count	From				SubobjectPath	Reason			Message
  ─────────	────────	─────	────				─────────────	──────			───────
  1m		1m		1	{replication-controller }			SuccessfulCreate	Created pod: test-b-4pg6g



Expected results:
pod of "test-b" should exist

Additional info: