verified with 4.6.0-0.nightly-2021-06-10-234022 and passed.
$ oc get clusterversion
NAME VERSION AVAILABLE PROGRESSING SINCE STATUS
version 4.6.0-0.nightly-2021-06-10-234022 True False 35m Cluster version is 4.6.0-0.nightly-2021-06-10-234022
$ oc -n openshift-dns get cm/dns-default -oyaml
forward . 192.168.1.2
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 (OpenShift Container Platform 4.6.35 bug fix update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.