[bugfix,lib/model][xs]: fix micro bug whereby result count for search…

…es not set if 0 results (due to incorrect if statement).

lib/model.js

@@ -310,7 +310,7 @@ CKAN.Model = function ($, _, Backbone, undefined) {
   // then be accessed via the `total` property.
   Model.SearchCollection = Backbone.Collection.extend({
     constructor: function SearchCollection(models, options) {
-      if (options && options.total) {
+      if (options) {
         this.total = options.total;
       }
       Backbone.Collection.prototype.constructor.apply(this, arguments);