[backend] Fix Work cacallable setup

beat/web/backend/views.py

@@ -65,13 +65,14 @@ class Work:
 
     def __setup__(self):
 
-        Worker.cpulimit = resolve_cpulimit_path(None)
-        Worker.process = utils.resolve_process_path()
-        Worker.environments = utils.find_environments(None)
-        Work.worker = Worker.objects.get(name=socket.gethostname()) \
+        Work.cpulimit = resolve_cpulimit_path(None)
+        Work.process = utils.resolve_process_path()
+        Work.environments = utils.find_environments(None)
+        w = Worker.objects.get(name=socket.gethostname()) \
             if Worker.objects.count() != 1 else Worker.objects.get()
-        Work.worker.activate()
-        Work.worker.save()
+        w.activate()
+        w.save()
+        Work.worker = w
 
     def __call__(self):