AMBARI-12955. First adding hosts to created host group is not possible - no any host is displayed (onechiporenko)

ambari-web/app/utils/hosts.js

@@ -135,6 +135,11 @@ module.exports = {
           this.filteredContentObsOnce();
         },
 
+        /**
+         * Default filter-method isn't needed
+         */
+        filter: Em.K,
+
         filterHosts: function () {
           var filterText = this.get('filterText');
           var showOnlySelectedHosts = this.get('showOnlySelectedHosts');