[1.11.x] Fixed #28387 -- Fixed has_changed() for disabled form fields that subclass it.

Backport of 5debbdfcc84266703191e084914998e38f5f52eb from master

1 files changed, 8 insertions, 0 deletions

diff --git a/tests/model_forms/tests.py b/tests/model_forms/tests.py
index f33278f88a..f3317f59de 100644
--- a/tests/model_forms/tests.py
+++ b/tests/model_forms/tests.py
@@ -1708,6 +1708,10 @@ class ModelChoiceFieldTests(TestCase):
             ['Select a valid choice. That choice is not one of the available choices.']
         )
 
+    def test_disabled_modelchoicefield_has_changed(self):
+        field = forms.ModelChoiceField(Author.objects.all(), disabled=True)
+        self.assertIs(field.has_changed('x', 'y'), False)
+
     def test_disabled_multiplemodelchoicefield(self):
         class ArticleForm(forms.ModelForm):
             categories = forms.ModelMultipleChoiceField(Category.objects.all(), required=False)
@@ -1733,6 +1737,10 @@ class ModelChoiceFieldTests(TestCase):
         self.assertEqual(form.errors, {})
         self.assertEqual([x.pk for x in form.cleaned_data['categories']], [category1.pk])
 
+    def test_disabled_modelmultiplechoicefield_has_changed(self):
+        field = forms.ModelMultipleChoiceField(Author.objects.all(), disabled=True)
+        self.assertIs(field.has_changed('x', 'y'), False)
+
     def test_modelchoicefield_iterator(self):
         """
         Iterator defaults to ModelChoiceIterator and can be overridden with