Performance: ensure version-aware content filters on querysets (#13792)

src/documents/tests/test_api_search.py

@@ -1947,6 +1947,29 @@ class TestDocumentSearchApi(DirectoriesMixin, APITestCase):
         self.assertEqual(len(response.data["documents"]), 1)
         self.assertEqual(response.data["documents"][0]["id"], title_match.id)
 
+    def test_global_search_returns_latest_version_content(self) -> None:
+        root = Document.objects.create(
+            title="bank statement",
+            content="superseded content",
+            checksum="GSV1",
+            pk=23,
+        )
+        Document.objects.create(
+            title="bank statement v2",
+            content="latest content",
+            checksum="GSV2",
+            pk=24,
+            root_document=root,
+            version_index=1,
+        )
+
+        self.client.force_authenticate(self.user)
+
+        response = self.client.get("/api/search/?query=bank&db_only=true")
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+        returned = {doc["id"]: doc["content"] for doc in response.data["documents"]}
+        self.assertEqual(returned.get(root.id), "latest content")
+
     def test_global_search_filters_owned_mail_objects(self) -> None:
         user1 = User.objects.create_user("mail-search-user")
         user2 = User.objects.create_user("other-mail-search-user")