misc: limit indexing to anonymous cells (#15422)

combo/data/models.py

@@ -472,6 +472,10 @@ class CellBase(models.Model):
         context = Context({'synchronous': True})
         if not self.is_enabled():
             return ''
+        if self.user_dependant:
+            return ''
+        if not self.page.is_visible(user=None):
+            return ''
         if not self.is_visible(user=None):
             return ''
         if not self.is_relevant(context):