Merge pull request Expensify#79275 from marufsharifi/fix/expense-merge-opens-wrong-chat

Fix incorrect chat opening after merging expense with self DM

Author: MonilBhavsar

src/pages/TransactionMerge/ConfirmationPage.tsx

@@ -23,6 +23,7 @@ import isSearchTopmostFullScreenRoute from '@libs/Navigation/helpers/isSearchTop
 import Navigation from '@libs/Navigation/Navigation';
 import type {PlatformStackScreenProps} from '@libs/Navigation/PlatformStackNavigation/types';
 import type {MergeTransactionNavigatorParamList} from '@libs/Navigation/types';
+import {findSelfDMReportID} from '@libs/ReportUtils';
 import CONST from '@src/CONST';
 import ONYXKEYS from '@src/ONYXKEYS';
 import ROUTES from '@src/ROUTES';
@@ -63,7 +64,7 @@ function ConfirmationPage({route}: ConfirmationPageProps) {
         if (!targetTransaction || !mergeTransaction || !sourceTransaction) {
             return;
         }
-        const reportID = mergeTransaction.reportID;
+        const reportID = mergeTransaction.reportID === CONST.REPORT.UNREPORTED_REPORT_ID ? findSelfDMReportID() : mergeTransaction.reportID;
 
         setIsMergingExpenses(true);
         mergeTransactionRequest({