This check used to be run only within the `when sd.owner` ... but now it's been moved out of the case statement.  This is the same basic mechanical thing we did with:

```ruby
if ace.sid == well_known_system_sid
  mode &= ~S_ISYSTEM_MISSING
end
```

I'm wondering if you discovered an issue, or if it was just that the code didn't need to be inside the `case` statement?