userclass-picker: Preventing disabling number of users & spawn rate f…

…ields when userclass picker is active

locust/web.py

@@ -174,6 +174,9 @@ def swarm() -> Response:
                 else:
                     self._update_shape_class(form_data_shape_class_name)
 
+                print("\nshape class", self.environment.shape_class)
+                print("user_classes", self.environment.user_classes)
+
                 # Stopping Runners and setting user dispatchers to None so that they
                 # are recreated with the appropriate UserClasses
                 self._stop_runners()
@@ -526,7 +529,7 @@ def update_template_args(self):
             "num_users": options and options.num_users,
             "spawn_rate": options and options.spawn_rate,
             "worker_count": worker_count,
-            "is_shape": self.environment.shape_class,
+            "is_shape": self.environment.shape_class and not self.userclass_picker_is_active,
             "stats_history_enabled": options and options.stats_history_enabled,
             "tasks": dumps({}),
             "extra_options": extra_options,