Fix error when updating a GM/DM (#25186)

webapp/channels/src/actions/websocket_actions.jsx

@@ -644,7 +644,8 @@ export function handleChannelUpdatedEvent(msg) {
 
         if (channel.id === getCurrentChannelId(state)) {
             // using channel's team_id to ensure we always redirect to current channel even if channel's team changes.
-            getHistory().replace(`${getRelativeTeamUrl(state, channel.team_id)}/channels/${channel.name}`);
+            const teamId = channel.team_id || getCurrentTeamId(state);
+            getHistory().replace(`${getRelativeTeamUrl(state, teamId)}/channels/${channel.name}`);
         }
     };
 }