From 91c947066408d496f8990ba90fbf2c4d1d80f63f Mon Sep 17 00:00:00 2001
From: Klaas van Schelven <klaas@vanschelven.com>
Date: Sat, 23 Feb 2013 13:01:28 +0100
Subject: [PATCH] Method "save" in BaseModelFormSet is marked as alters_data

Fixes #17663
---
 django/forms/models.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/django/forms/models.py b/django/forms/models.py
index c4e0301614..d545a07488 100644
--- a/django/forms/models.py
+++ b/django/forms/models.py
@@ -513,6 +513,8 @@ class BaseModelFormSet(BaseFormSet):
             self.save_m2m = save_m2m
         return self.save_existing_objects(commit) + self.save_new_objects(commit)
 
+    save.alters_data = True
+
     def clean(self):
         self.validate_unique()