update (#60)

src/agentscope/web/workstation/workflow_node.py

@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 """Workflow node opt."""
 import ast
+import copy
 from abc import ABC, abstractmethod
 from enum import IntEnum
 from functools import partial
@@ -93,7 +94,7 @@ def __init__(
         self.only_compile = only_compile
 
         self.node_id = node_id
-        self.opt_kwargs = opt_kwargs
+        self.opt_kwargs = copy.deepcopy(opt_kwargs)
         self.source_kwargs = source_kwargs
         self.dep_opts = dep_opts
         self.dep_vars = [opt.var_name for opt in self.dep_opts]