FIX: the tags_sort_alphabetically setting applies to the tags list page too

app/assets/javascripts/discourse/routes/tags-index.js.es6

@@ -7,6 +7,13 @@ export default Discourse.Route.extend({
     return I18n.t("tagging.tags");
   },
 
+  setupController(controller, model) {
+    this.controllerFor('tags.index').setProperties({
+      model,
+      sortProperties: this.siteSettings.tags_sort_alphabetically ? ['id'] : ['count:desc', 'id']
+    });
+  },
+
   actions: {
     didTransition() {
       this.controllerFor("application").set("showFooter", true);