我不确定发生了什么，但此命令过去一直存在。我有一个名为refactorizacion的分支签出。如果我运行命令git fetch，它似乎工作正常（没有显示错误），但如果我运行git fetch origin refactorizacion:refactorizacion，它会给我以下错误：
fatal: Refusing to fetch into current branch refs/heads/refactorizacion of non-bare repository
Unexpected end of command stream
这也导致eclipse中的Team > Synchronize Workspace egit命令显示错误：
Fetch operation failed
Synchronization will be continued based on data that are currently in repository.
You can disable fetching changes before synchronization in preferences: Team > Git > Always launch fetch before synchronization