Fix crash when applying task filter in Search for tasks without a description

src/libs/SearchUIUtils.ts

@@ -2590,8 +2590,8 @@ function getTaskSections(
             const report = getReportOrDraftReport(taskItem.reportID) ?? taskItem;
             const parentReport = getReportOrDraftReport(taskItem.parentReportID) ?? data[`${ONYXKEYS.COLLECTION.REPORT}${taskItem.parentReportID}`];
 
-            const reportName = StringUtils.lineBreaksToSpaces(Parser.htmlToText(taskItem.reportName));
-            const description = StringUtils.lineBreaksToSpaces(Parser.htmlToText(taskItem.description));
+            const reportName = StringUtils.lineBreaksToSpaces(Parser.htmlToText(taskItem.reportName ?? ''));
+            const description = StringUtils.lineBreaksToSpaces(Parser.htmlToText(taskItem.description ?? ''));
 
             const result: TaskListItemType = {
                 ...taskItem,

tests/unit/Search/SearchUIUtilsTest.ts

@@ -2674,6 +2674,57 @@ describe('SearchUIUtils', () => {
             expect(allReportActionsLength).toBe(6);
         });
 
+        it('should not crash when a task has no description or reportName (type TASK)', () => {
+            const taskReportID = '987654321';
+            const taskReport = createMock<SearchTask>({
+                type: CONST.REPORT.TYPE.TASK,
+                accountID: adminAccountID,
+                managerID: adminAccountID,
+                created: '2024-01-01 00:00:00',
+                parentReportID: '123456789',
+                reportID: taskReportID,
+                stateNum: CONST.REPORT.STATE_NUM.OPEN,
+                statusNum: CONST.REPORT.STATUS_NUM.OPEN,
+                // description and reportName intentionally omitted: a task created without a description
+                // has `description === undefined`, which used to crash htmlToText.
+            });
+            const taskData = createMock<OnyxTypes.SearchResults['data']>({
+                personalDetailsList: {
+                    [adminAccountID]: {
+                        accountID: adminAccountID,
+                        avatar: '',
+                        displayName: 'Task Admin',
+                        login: adminEmail,
+                    },
+                },
+                [`report_${taskReportID}`]: taskReport,
+            });
+
+            const getTaskSectionsResult = () =>
+                getSectionsByType(
+                    SearchUIUtils.getSections({
+                        type: CONST.SEARCH.DATA_TYPES.TASK,
+                        data: taskData,
+                        currentAccountID: adminAccountID,
+                        currentUserEmail: adminEmail,
+                        translate: translateLocal,
+                        formatPhoneNumber,
+                        bankAccountList: {},
+                        conciergeReportID: undefined,
+                        convertToDisplayString,
+                        reportAttributesDerivedValue: {},
+                    }),
+                    SearchUIUtils.isTaskListItemType,
+                )[0];
+
+            expect(getTaskSectionsResult).not.toThrow();
+
+            const [task] = getTaskSectionsResult();
+            expect(task.reportID).toBe(taskReportID);
+            expect(task.description).toBe('');
+            expect(task.reportName).toBe('');
+        });
+
         it('should return getTransactionsSections result when groupBy is undefined', () => {
             expect(
                 SearchUIUtils.getSections({