Changes made to the Cloned Network offering are not persisted

### problem

Clone Network offering is not working

### versions

ACS 4.23

### The steps to reproduce the bug

https://docs.cloudstack.apache.org/en/4.23.0.0/adminguide/service_offerings.html#cloning-offerings

1. Click on a shared network offering

2. Clone the shared network offering > Change the userdata to config drive

3. Check the clone shared network offering configuration it remains virtual router

Screen recording

https://github.com/user-attachments/assets/e599c117-2213-46a3-b29e-2a71d920ac28

### What to do about it?

Network offering changes should be persisted when cloned

從連結的 CloudStack 管理員指南中描述的複製網路提供工作流程開始，並重現從 virtual router 到 config drive 的變更。追蹤複製的 offering 儲存在哪裡，然後確認重新開啟其設定時，所選的 userdata 設定仍會保留。

由索引模型根據 Issue 內容生成。