fix: DiscussionsConfigurations admin error

openedx/core/djangoapps/discussions/admin.py

@@ -3,6 +3,7 @@
 """
 from django.contrib import admin
 from django.contrib.admin import SimpleListFilter
+from django.contrib.admin.utils import quote
 from simple_history.admin import SimpleHistoryAdmin
 
 from openedx.core.djangoapps.config_model_utils.admin import StackedConfigModelAdmin
@@ -26,6 +27,9 @@ class DiscussionsConfigurationAdmin(SimpleHistoryAdmin):
         'provider_type',
     )
 
+    def change_view(self, request, object_id=None, form_url="", extra_context=None):
+        return super().change_view(request, quote(object_id), form_url, extra_context)
+
 
 class AllowListFilter(SimpleListFilter):
     """

openedx/core/djangoapps/discussions/tests/test_admin.py

@@ -0,0 +1,32 @@
+"""
+Tests for DiscussionsConfiguration admin view
+"""
+from django.test import TestCase
+from django.urls import reverse
+
+from common.djangoapps.student.tests.factories import UserFactory
+from openedx.core.djangoapps.discussions.models import DiscussionsConfiguration, Provider
+
+
+class DiscussionsConfigurationAdminTest(TestCase):
+    """
+    Tests for discussion config admin
+    """
+    def setUp(self):
+        super().setUp()
+        self.superuser = UserFactory(is_staff=True, is_superuser=True)
+        self.client.login(username=self.superuser.username, password="Password1234")
+
+    def test_change_view(self):
+        """
+        Test that the DiscussionAdmin's change_view processes the context_key correctly and returns a successful
+        response.
+        """
+        discussion_config = DiscussionsConfiguration.objects.create(
+            context_key='course-v1:test+test+06_25_2024',
+            provider_type=Provider.OPEN_EDX,
+        )
+        url = reverse('admin:discussions_discussionsconfiguration_change', args=[discussion_config.context_key])
+        response = self.client.get(url)
+        self.assertEqual(response.status_code, 200)
+        self.assertContains(response, 'course-v1:test+test+06_25_2024')