theming should be fine now

src/c3nav/mapdata/utils/cache/cache_decorator.py

@@ -0,0 +1,15 @@
+def mapdata_cache(func):
+    cache_key = None
+    cached_value = None
+
+    def wrapper():
+        nonlocal cached_value
+        nonlocal cache_key
+        from c3nav.mapdata.models import MapUpdate
+        current_cache_key = MapUpdate.current_cache_key()
+        if current_cache_key != cache_key:
+            cached_value = func()
+            cache_key = current_cache_key
+        return cached_value
+
+    return wrapper

src/c3nav/mapdata/utils/user.py

@@ -13,7 +13,6 @@ def get_user_data(request):
         'logged_in': bool(request.user.is_authenticated),
         'allow_editor': can_access_editor(request),
         'allow_control_panel': request.user_permissions.control_panel,
-        'show_nonpublic_themes': request.user_permissions.nonpublic_themes,
         'has_positions': Position.user_has_positions(request.user)
     }
     if permissions: