Update openai_ondemand_adapter.py

openai_ondemand_adapter.py

@@ -167,6 +167,7 @@ def format_openai_sse_delta(chunk_str):
 
 @app.route("/v1/chat/completions", methods=["POST"])
 def chat_completions():
+    keymgr.current_session = None
     data = request.json
     if not data or "messages" not in data:
         return jsonify({"error": "请求缺少messages字段"}), 400