fixup todo

Author: AlexTugarev

components/server/src/workspace/gitpod-server-impl.ts

@@ -464,7 +464,7 @@ export class GitpodServerImpl implements GitpodServerWithTracing, Disposable {
                 //
                 const ws = await this.workspaceDb.trace(ctx).findById(workspaceID);
                 const relatedPrebuildFound = !!ws && !!wsi && ws.ownerId !== this.userID;
-                if (this.client && relatedPrebuildFound) {
+                if (this.shouldNotifyClients && relatedPrebuildFound) {
                     const resetListenerFromRedis = this.subscriber.listenForWorkspaceInstanceUpdates(
                         ws.ownerId,
                         (ctx, instance) => {