Confirmed with latest oc client, the issue has fixed:
[zhouying@dhcp-140-138 ~]$ oc version -o yaml
[zhouying@dhcp-140-138 ~]$ oc describe dc ruby-ex
Created: 36 seconds ago
Latest Version: Not deployed
Autoscaling: between 1 and 10 replicas targeting 50% CPU over all the pods
Triggers: Config, Image(ruby-ex@latest, auto=true)
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.