@Xingxing please close it as this is a non-customer facing issue.
It can be closed once https://github.com/openshift/cluster-kube-apiserver-operator/pull/717 merges.
Moving to verified per bug 1791023#c5 and comment 2
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.