lib/friendly_id/base.rb in friendly_id-5.1.0 vs lib/friendly_id/base.rb in friendly_id-5.2.0.beta.1

@@ -242,10 +242,11 @@
       send friendly_id_config.query_field
     end
 
     # Either the friendly_id, or the numeric id cast to a string.
     def to_param
-      if diff = changes[friendly_id_config.query_field]
+      if attribute_changed?(friendly_id_config.query_field)
+        diff = changes[friendly_id_config.query_field]
         diff.first || diff.second
       else
         friendly_id.presence.to_param || super
       end
     end