Replace `refreshModel` with a custom property

app/assets/javascripts/discourse/routes/discourse.js.es6

@@ -2,15 +2,20 @@ import showModal from 'discourse/lib/show-modal';
 
 const DiscourseRoute = Ember.Route.extend({
 
-  refreshModel: null,
+  // Set to true to refresh a model without a transition if a query param
+  // changes
+  resfreshQueryWithoutTransition: false,
 
   refresh: function() {
-    // Implement `refreshModel` to avoid a full transition to ourselves
-    if (!this.refreshModel) { return this._super(); }
+    if (!this.refreshQueryWithoutTransition) { return this._super(); }
 
     if (!this.router.router.activeTransition) {
-      const params = this.controller.getProperties(Object.keys(this.queryParams));
-      this.refreshModel(params);
+      const controller = this.controller,
+            model = controller.get('model'),
+            params = this.controller.getProperties(Object.keys(this.queryParams));
+
+      model.set('loading', true);
+      this.model(params).then(model => this.setupController(controller, model));
     }
   },
 

app/assets/javascripts/discourse/routes/users.js.es6

@@ -5,12 +5,7 @@ export default Discourse.Route.extend({
     asc: { refreshModel: true }
   },
 
-  refreshModel(params) {
-    const controller = this.controllerFor('users');
-    controller.set('model.loading', true);
-
-    this.model(params).then(model => this.setupController(controller, model));
-  },
+  refreshQueryWithoutTransition: true,
 
   model(params) {
     // If we refresh via `refreshModel` set the old model to loading