In BZ1841260 we refactored the NetworkManager prepender to be atomic, but also enabled `set -e`. We used to get a resolv.conf because the podman command in the prepender failed and fell through to the cp of /var/run/NetworkManager/resolv.conf. This no longer happens as podman results in the script bailing, and now we never get a resolv.conf.
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. https://access.redhat.com/errata/RHBA-2020:2409