message: add check of undefined revisions
  s
diff: @@ -52,7 +52,7 @@ const RevisionsOverviewList: React.FC<RevisionsOverviewListProps> = ({ revisions
  <Button
  variant="secondry"
  onClick={() => trafficModalLauncher({ obj: service })}
  - disabled={revisions.length === 0}
  + disabled={!(revisions && revisions.length)}
  >
  Set Traffic Distribution
  </Button>
  