指定lava获取仓库 pr commitid，lava测试实际操作还是获取仓库最新的代码

lava任务模板中指定了PR的Commitid，但是lava操作的时候git命令里没有指定commitid

<img width="1393" height="372" alt="Image" src="https://github.com/user-attachments/assets/d60e8556-9dc6-4054-a459-af545329ddff" />

<img width="1891" height="571" alt="Image" src="https://github.com/user-attachments/assets/c06ec663-211e-483a-83f3-41aae41f6fb4" />