Fixed errors caused by poor git-fu.

Forgot I was on a detached head, made a commit, and failed hard at
cherry-picking the commit back to the correct branch.

website/public/js/controllers/filtersCtrl.js

@@ -4,6 +4,7 @@ habitrpg.controller("FiltersCtrl", ['$scope', '$rootScope', 'User', 'Shared',
   function($scope, $rootScope, User, Shared) {
     var user = User.user;
     $scope._editing = false;
+    $scope._newTag = {name:''};
 
     var tagsSnap; // used to compare which tags need updating