call correct method in js

src/c3nav/site/migrations/0004_siteupdate_tweaks.py

@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.7 on 2017-12-24 00:24
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('site', '0003_siteupdate'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='siteupdate',
+            options={'get_latest_by': 'created', 'verbose_name': 'Site update', 'verbose_name_plural': 'Site updates'},
+        ),
+    ]

src/c3nav/site/static/site/js/c3nav.js

@@ -922,7 +922,7 @@ c3nav = {
     },
     _modal_loaded: function(data) {
         if (data.startsWith('{')) {
-            c3nav._fetch_updates_callback(JSON.parse(data));
+            c3nav._set_user_data(JSON.parse(data));
             history.back();
             return;
         }