Invalidate cache on archival state change

Author: akatsoulas

kitsune/products/models.py

@@ -170,7 +170,8 @@ def get_absolute_url(self, product_slug=None):
         return reverse(named_url, kwargs=kwargs)
 
     def save(self, *args, **kwargs):
-        if self._topic_is_archived != self.is_archived and self.is_archived:
+        # Check if the is_archived field has changed
+        if self._topic_is_archived != self.is_archived:
             for product in self.products.all():
                 cache_key = f"hierarchical_topics_{product.slug}"
                 cache.delete(cache_key)