Fixed by PR https://github.com/openshift/cluster-svcat-apiserver-operator/pull/71 via Bug #1771931
The latest nightly build doesn't include the fix pr, will test when the nightly build is ready.
1.enable service-catalog-apiserver & service-catalog-controller-manager
2. update cluster from 4.2 -> 4.3.0-0.nightly-2019-11-24-183610 success
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.