Unpacking objects：53%；hint: Updates were rejected because the tip of your current branch is behind

Unpacking objects: 53% (22/41) 一直進行不下去；還報一下以下錯誤： git pull或push都不行，一直報錯，後面強制更新git pull -f origin dev；這樣執行過後就好了，直接用git pull 或 git push 都可以了。

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