regression: Reply in other channel actions not working if ?msg= is present in URL

apps/meteor/client/components/message/toolbar/useReplyInDMAction.spec.ts

@@ -0,0 +1,86 @@
+import { mockAppRoot } from '@rocket.chat/mock-providers';
+import { renderHook } from '@testing-library/react';
+
+import { useReplyInDMAction } from './useReplyInDMAction';
+import { createFakeMessage, createFakeRoom, createFakeSubscription, createFakeUser } from '../../../../tests/mocks/data';
+import { roomCoordinator } from '../../../lib/rooms/roomCoordinator';
+
+jest.mock('../../../lib/rooms/roomCoordinator', () => ({
+	roomCoordinator: {
+		openRouteLink: jest.fn(),
+	},
+}));
+
+const mockedOpenRouteLink = jest.mocked(roomCoordinator.openRouteLink);
+
+const currentUser = createFakeUser({
+	_id: 'current-user-id',
+	username: 'currentuser',
+});
+
+const messageAuthor = {
+	_id: 'author-user-id',
+	username: 'authoruser',
+	name: 'Author User',
+};
+
+const message = createFakeMessage({
+	_id: 'reply-message-id',
+	u: messageAuthor,
+});
+
+const room = createFakeRoom({
+	_id: 'channel-id',
+	t: 'c',
+	name: 'general',
+});
+
+const subscription = createFakeSubscription({
+	rid: 'channel-id',
+	t: 'c',
+});
+
+afterEach(() => {
+	jest.clearAllMocks();
+});
+
+describe('useReplyInDMAction', () => {
+	it('should not carry over the msg search parameter when opening a direct message', () => {
+		const getSearchParameters = jest.fn().mockReturnValue({
+			msg: 'stale-message-id',
+			layout: 'embedded',
+		});
+
+		const { result } = renderHook(() => useReplyInDMAction(message, { room, subscription }), {
+			wrapper: mockAppRoot().withUser(currentUser).withPermission('create-d').withRouter({ getSearchParameters }).build(),
+		});
+
+		expect(result.current).not.toBeNull();
+
+		result.current?.action({ stopPropagation: jest.fn() } as unknown as UIEvent);
+
+		expect(getSearchParameters).toHaveBeenCalled();
+		expect(mockedOpenRouteLink).toHaveBeenCalledWith(
+			'd',
+			{ name: messageAuthor.username },
+			{
+				layout: 'embedded',
+				reply: 'reply-message-id',
+			},
+		);
+
+		const searchParams = mockedOpenRouteLink.mock.calls[0]?.[2];
+		expect(searchParams).not.toHaveProperty('msg');
+	});
+
+	it('should return null when already in a direct message room', () => {
+		const dmRoom = createFakeRoom({ t: 'd' });
+		const dmSubscription = createFakeSubscription({ t: 'd' });
+
+		const { result } = renderHook(() => useReplyInDMAction(message, { room: dmRoom, subscription: dmSubscription }), {
+			wrapper: mockAppRoot().withUser(currentUser).withPermission('create-d').build(),
+		});
+
+		expect(result.current).toBeNull();
+	});
+});

apps/meteor/client/components/message/toolbar/useReplyInDMAction.ts

@@ -71,11 +71,12 @@ export const useReplyInDMAction = (
 		context: ['message', 'message-mobile', 'threads', 'federated'],
 		type: 'communication',
 		action() {
+			const { msg: _, ...searchParameters } = router.getSearchParameters();
 			roomCoordinator.openRouteLink(
 				'd',
 				{ name: message.u.username },
 				{
-					...router.getSearchParameters(),
+					...searchParameters,
 					reply: message._id,
 				},
 			);

apps/meteor/client/lib/chats/flows/replyBroadcast.ts

@@ -5,11 +5,12 @@ import { roomCoordinator } from '../../rooms/roomCoordinator';
 import type { ChatAPI } from '../ChatAPI';
 
 export const replyBroadcast = async (_chat: ChatAPI, message: IMessage) => {
+	const { msg: _, ...searchParameters } = router.getSearchParameters();
 	roomCoordinator.openRouteLink(
 		'd',
 		{ name: message.u.username },
 		{
-			...router.getSearchParameters(),
+			...searchParameters,
 			reply: message._id,
 		},
 	);