From bb94e1b7dbd42af51d805efafe52b22eb86d5ebe Mon Sep 17 00:00:00 2001
From: Laurens Verhoeven <12578054+laurensverhoeven@users.noreply.github.com>
Date: Fri, 17 Feb 2023 21:05:00 +0100
Subject: [PATCH] [4.2.x] Fixed #34349 -- Fixed FormSet.empty_form crash when
 deleting extra forms is disabled.

Backport of 6cbc403b8ee7014bd6dae4892d404eedb1d4a50d from main
---
 django/forms/formsets.py                 | 4 +++-
 tests/forms_tests/tests/test_formsets.py | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/django/forms/formsets.py b/django/forms/formsets.py
index f14e1aae830..0fa832a2482 100644
--- a/django/forms/formsets.py
+++ b/django/forms/formsets.py
@@ -492,7 +492,9 @@ class BaseFormSet(RenderableFormMixin):
                     required=False,
                     widget=self.get_ordering_widget(),
                 )
-        if self.can_delete and (self.can_delete_extra or index < initial_form_count):
+        if self.can_delete and (
+            self.can_delete_extra or (index is not None and index < initial_form_count)
+        ):
             form.fields[DELETION_FIELD_NAME] = BooleanField(
                 label=_("Delete"),
                 required=False,
diff --git a/tests/forms_tests/tests/test_formsets.py b/tests/forms_tests/tests/test_formsets.py
index f0e4b154b7e..9e04b748f5f 100644
--- a/tests/forms_tests/tests/test_formsets.py
+++ b/tests/forms_tests/tests/test_formsets.py
@@ -1482,6 +1482,7 @@ class FormsFormsetTestCase(SimpleTestCase):
         self.assertIn("DELETE", formset.forms[0].fields)
         self.assertNotIn("DELETE", formset.forms[1].fields)
         self.assertNotIn("DELETE", formset.forms[2].fields)
+        self.assertNotIn("DELETE", formset.empty_form.fields)
 
         formset = ChoiceFormFormset(
             data={