1 files changed, 19 insertions, 0 deletions
diff --git a/tests/postgres_tests/test_ranges.py b/tests/postgres_tests/test_ranges.py
index 89f32ee77c..74f1ec0ff8 100644
--- a/tests/postgres_tests/test_ranges.py
+++ b/tests/postgres_tests/test_ranges.py
@@ -5,6 +5,7 @@ from decimal import Decimal
 from django import forms
 from django.core import exceptions, serializers
 from django.db.models import DateField, DateTimeField, F, Func, Value
+from django.http import QueryDict
 from django.test import ignore_warnings, override_settings
 from django.utils import timezone
 from django.utils.deprecation import RemovedInDjango31Warning
@@ -512,6 +513,24 @@ class TestFormField(PostgreSQLSimpleTestCase):
         value = field.clean(['', ''])
         self.assertIsNone(value)
 
+    def test_datetime_form_initial_data(self):
+        class DateTimeRangeForm(forms.Form):
+            datetime_field = pg_forms.DateTimeRangeField(show_hidden_initial=True)
+
+        data = QueryDict(mutable=True)
+        data.update({
+            'datetime_field_0': '2010-01-01 11:13:00',
+            'datetime_field_1': '',
+            'initial-datetime_field_0': '2010-01-01 10:12:00',
+            'initial-datetime_field_1': '',
+        })
+        form = DateTimeRangeForm(data=data)
+        self.assertTrue(form.has_changed())
+
+        data['initial-datetime_field_0'] = '2010-01-01 11:13:00'
+        form = DateTimeRangeForm(data=data)
+        self.assertFalse(form.has_changed())
+
     def test_rendering(self):
         class RangeForm(forms.Form):
             ints = pg_forms.IntegerRangeField()