Code review comment for ~osomon/ubuntu-release-upgrader:firefox-snap

No, that's just test data, the corresponding test case starts like this:

    def test_prepare_snap_replacement_data(self):
        # Prepare the state for testing
        controller = mock.Mock()
        config = mock.Mock()
        q = DistUpgradeQuirks(controller, config)
        q._from_version = "19.04"
        q._to_version = "19.10"