Opened automatically by cherry-pick, but there is already a 4.7 bug to target: https://bugzilla.redhat.com/show_bug.cgi?id=1947705
verified via ci-search that this is not occuring in 4.7 anymore: https://search.ci.openshift.org/?search=Cluster+should+restore+itself+after+quorum+loss&maxAge=48h&context=1&type=junit&name=.*4.7.*&excludeName=&maxMatches=5&maxBytes=20971520&groupBy=job