OSE PR:
https://github.com/openshift/ose/pull/860

Not fixed in errata version (atomic-openshift-3.5.5.31.27-1.git.0.5d19d76.el7)
  or latest 3.5 (v3.5.5.31.29)

Weiha Meng,

None of those builds have my changes. The PR got merged 6 days ago and I couldn't find a release for 3.5 after that. 

Also, the pod.yaml needs to change for the testing as pod-affinity and anti-affinity are in annotations rather than in pod spec for 3.5.

Looks like the errata tool may have mistakenly moved this to ON_QA.  Moving back to MODIFIED until it is actually in a build.

NOT fixed.
openshift v3.5.5.31.34

Can you please share the pod.yaml that was used for testing?

# cat deployment-sample.yaml 
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
    name: sample1
spec:
  replicas: 2
  template:
    metadata:
      labels:
          app: sample
      annotations:
        scheduler.alpha.kubernetes.io/affinity: >
          {
            "podAntiAffinity": {
              "requiredDuringSchedulingIgnoredDuringExecution": [
                {
                  "labelSelector": {
                    "matchExpressions": [
                      {
                        "key": "app",
                        "operator": "In",
                        "values": ["sample"]
                      }
                    ]
                  },
                  "topologyKey": "kubernetes.io/hostname"
                }
              ]
            }
          }
    spec:
      containers:
      - name: sam
        image: docker.io/ocpqe/hello-pod

Thanks Weihua Meng, I will check this.

Verified on openshift v3.5.5.31.39
Fixed.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2017:3389