From 8e7e28dab33381f5e580757c8706c15caadc58e5 Mon Sep 17 00:00:00 2001
From: SKairinos <skairinos@gmail.com>
Date: Thu, 20 Jun 2024 11:44:16 +0000
Subject: [PATCH] fix: previous_values_are_unequal

---
 codeforlife/models/signals/pre_save.py | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/codeforlife/models/signals/pre_save.py b/codeforlife/models/signals/pre_save.py
index faeb4125..9eccc283 100644
--- a/codeforlife/models/signals/pre_save.py
+++ b/codeforlife/models/signals/pre_save.py
@@ -105,9 +105,12 @@ def previous_values_are_unequal(instance: _.AnyModel, fields: t.Set[str]):
     """
     # pylint: enable=line-too-long
 
-    def predicate(v1, v2):
-        return v1 != v2
-
     return check_previous_values(
-        instance, {field: predicate for field in fields}
+        instance,
+        {
+            field: lambda previous_value: (
+                previous_value != getattr(instance, field)
+            )
+            for field in fields
+        },
     )