Fixed product benefits not loaded on memberships settings

refs https://github.com/TryGhost/Team/issues/905

- benefits were overridden with a secondary products query for segment select which did not have proper includes
- fixes includes for products when fetched for member segments

ghost/admin/app/components/gh-members-segment-select.js

@@ -97,7 +97,7 @@ export default class GhMembersSegmentSelect extends Component {
         if (this.feature.get('multipleProducts')) {
             // fetch all products w̶i̶t̶h̶ c̶o̶u̶n̶t̶s̶
             // TODO: add `include: 'count.members` to query once API supports
-            const products = yield this.store.query('product', {limit: 'all'});
+            const products = yield this.store.query('product', {limit: 'all', include: 'monthly_price,yearly_price,benefits'});
 
             if (products.length > 0) {
                 const productsGroup = {

ghost/admin/app/transforms/product-benefits.js

@@ -3,13 +3,12 @@ import Transform from '@ember-data/serializer/transform';
 import {A as emberA, isArray as isEmberArray} from '@ember/array';
 
 export default Transform.extend({
-    deserialize(serialized, options) {
+    deserialize(serialized) {
         let benefitsItems, benefitsArray;
 
         benefitsArray = serialized || [];
 
         benefitsItems = benefitsArray.map((itemDetails) => {
-            itemDetails.isSecondary = options && options.isSecondary || false;
             return ProductBenefitItem.create(itemDetails);
         });