Fix bug

sync/signals.py

@@ -37,7 +37,8 @@ def detect_foreign_key_changes(sender, instance, **kwargs):
 
         # Check foreign key fields
         for field in sender._meta.get_fields():
-            if isinstance(field, models.ForeignKey):
+            if isinstance(field, models.ForeignKey) and not field.related_model == User:
+                print(f'field.related_model = {field.related_model}')
                 old_value = getattr(old_instance, field.name, None)
                 new_value = getattr(instance, field.name, None)
                 if old_value != new_value: