@domcleal, ok, I can update to
```ruby
attr_name :to_label
```
but the side effect is that `find_by_fullname` will not work with the `description` field
https://github.com/theforeman/foreman/blob/develop/app/models/operatingsystem.rb#L134-142

Also the setter `operatingsystems_names=` won't work if passing in the `description` field 
Hammer uses  `operatingsystems_names=`, right? @mbacovsky, @tstrachota