Description of problem:

`oc idle` functionality is not working with OpenShift 4.6. Once the pods are idled, it is not re-instated once the traffic flows in.

Version-Release number of selected component (if applicable):

OpenShift v4.6.12

How reproducible:

100%

Steps to Reproduce:
1. Create a new-app and idle the pods:

# oc new-app httpd
# oc expose svc httpd
# oc idle httpd

2. Try cURL to the URL:

[quicklab@upi-0 ~]$ curl -kvv server-test.apps.ocp468cluster.lab.upshift.rdu2.redhat.com
* About to connect() to server-test.apps.ocp468cluster.lab.upshift.rdu2.redhat.com port 80 (#0)
..
      <h1>Application is not available</h1>
      <p>The application is currently not serving requests at this endpoint. It may not have been started or is still starting.</p>

      <div class="alert alert-info">
        <p class="info">
          Possible reasons you are seeing this page:
        </p>
        <ul>
          <li>
            <strong>The host doesn't exist.</strong>
            Make sure the hostname was typed correctly and that a route matching this hostname exists.
          </li>
          <li>
            <strong>The host exists, but doesn't have a matching path.</strong>
            Check if the URL path was typed correctly and that the route was created using the desired path.
          </li>
          <li>
            <strong>Route and path matches, but all pods are down.</strong>
            Make sure that the resources exposed by this route (pods, services, deployment configs, etc) have at least one pod running.
          </li>
..


Actual results:

The pods are not getting invoked once the traffic flows in.

Expected results:

Pods should re-scale once the traffic flows in.

Additional info:

Had tested this issue with OpenShift 4.5 and it was working as expected, only OpenShift 4.6 is affected it seems.