Fix: code debug may corrupt by history answer (#8385)

### What problem does this PR solve?

Fix code debug may corrupt by history answer.

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

agent/component/code.py

         for input in self._param.arguments:
             if "@" in input["component_id"]:
                 component_id = input["component_id"].split("@")[0]
-                refered_component_key = input["component_id"].split("@")[1]
-                refered_component = self._canvas.get_component(component_id)["obj"]
+                referred_component_key = input["component_id"].split("@")[1]
+                referred_component = self._canvas.get_component(component_id)["obj"]
 
-                for param in refered_component._param.query:
-                    if param["key"] == refered_component_key:
+                for param in referred_component._param.query:
+                    if param["key"] == referred_component_key:
                         if "value" in param:
                             arguments[input["name"]] = param["value"]
             else:
-                refered_component = self._canvas.get_component(input["component_id"])["obj"]
-                refered_component_name = refered_component.component_name
-                refered_component_id = refered_component._id
-                if refered_component_name.lower() == "answer":
-                    arguments[input["name"]] = self._canvas.get_history(1)[0]["content"]
-                    continue
+                referred_component = self._canvas.get_component(input["component_id"])["obj"]
+                referred_component_name = referred_component.component_name
+                referred_component_id = referred_component._id
 
                 debug_inputs = self._param.debug_inputs
                 if debug_inputs:
                     for param in debug_inputs:
-                        if param["key"] == refered_component_id:
+                        if param["key"] == referred_component_id:
                             if "value" in param and param["name"] == input["name"]:
                                 arguments[input["name"]] = param["value"]
                 else:
-                    _, out = refered_component.output(allow_partial=False)
+                    if referred_component_name.lower() == "answer":
+                        arguments[input["name"]] = self._canvas.get_history(1)[0]["content"]
+                        continue
+
+                    _, out = referred_component.output(allow_partial=False)
                     if not out.empty:
                         arguments[input["name"]] = "\n".join(out["content"])
 
             cpn_id = input["component_id"]
             elements.append({"key": cpn_id, "name": input["name"]})
         return elements
+
+    def debug(self, **kwargs):
+        return self._run([], **kwargs)

api/apps/canvas_app.py

                 code=RetCode.OPERATING_ERROR)
 
         canvas = Canvas(json.dumps(user_canvas.dsl), current_user.id)
-        canvas.get_component(req["component_id"])["obj"]._param.debug_inputs = req["params"]
+        componant = canvas.get_component(req["component_id"])["obj"]
+        componant.reset()
+        componant._param.debug_inputs = req["params"]
         df = canvas.get_component(req["component_id"])["obj"].debug()
         return get_json_result(data=df.to_dict(orient="records"))
     except Exception as e: