git 错误 fatal: loose object...is corrupt

错误描述：

error: object file .git/objects/9a/83e9c5b3d697d12a2e315e1777ceaf27ea1bab is empty
fatal: loose object 9a83e9c5b3d697d12a2e315e1777ceaf27ea1bab (stored in .git/objects/9a/83e9c5b3d697d12a2e315e1777ceaf27ea1bab) is corrupt

解决方法：

$ rm -fr .git
$ git init
$ git remote add origin your-git-remote-url
$ git fetch
$ git reset --hard origin/master
$ git branch --set-upstream-to=origin/master master