git pull时解决分支分叉（branch diverged）问题

git pull时出现分支冲突(branch diverged)

$ git status

# On branch feature/worker-interface

# Your branch and 'origin/br_dev' have diverged,

# and have 1 and 4 different commit(s) each, respectively.

解决办法：
一、查看哪一个commit冲突
git cherry origin/br_dev

二、回退到冲突的前一个commit
git reset --hard <commitID>

三、更新代码
git pull