always use extend for Internal OptionsObject

addon/-private/options.js

@@ -1,5 +1,4 @@
 import EmberObject, { get } from '@ember/object';
-import { isDescriptor } from '../utils/utils';
 
 const { keys } = Object;
 const OPTION_KEYS = '__option_keys__';
@@ -18,11 +17,7 @@ export default class Options {
     const optionKeys = keys(options);
     const createParams = { [OPTION_KEYS]: optionKeys, model, attribute };
 
-    // If any of the options is a CP, we need to create a custom class for it
-    if (optionKeys.some((key) => isDescriptor(options[key]))) {
-      return OptionsObject.extend(options).create(createParams);
-    }
-
-    return OptionsObject.create(createParams, options);
+    // we have to extend here in case anyone passes options that have computedProperties.
+    return OptionsObject.extend(options).create(createParams);
   }
 }