when a switchblade run has been done on a CF it will empty the default security group rules

[ramonskie]

the following code will empty the default security rules.

	for _, securityGroup := range securityGroups.Resources {
		if !strings.HasPrefix(securityGroup.Name, "switchblade") {
			err = s.cli.Execute(pexec.Execution{
				Args:   []string{"update-security-group", securityGroup.Name, filepath.Join(home, "empty-security-group.json")},
				Stdout: log,
				Stderr: log,
				Env:    env,
			})
			if err != nil {
				return "", fmt.Errorf("failed to update-security-group: %w\n\nOutput:\n%s", err, log)
			}
		}
	}

https://github.com/cloudfoundry/switchblade/blob/main/internal/cloudfoundry/setup.go#L318-L330

this is harmful on a running cloudfoundry instance
and i also do not see the purposes of this,
as we already set security rules per switchblade app/org/space

can someone please elaborate why this would be necessary