error: cannot lock ref ‘refs/remotes/origin/release/1.0.2’: ‘refs/remotes/origin/release’ exists; cannot create ‘refs/remotes/origin/release/1.0.2’
From http://gitlab.mogujie.org/wxa/mgj-outfit
! [new branch] release/1.0.2 -> origin/release/1.0.2 (unable to update local ref)
原因是远程删除了 release 分支，并新建了 release/1.0.2 分支，导致本地仓库中分支信息和远程的冲突
解决方案如下：
1.运行git remote show origin，会展示出所有的信息，包括了远端删除，但是本地保留的分支。
2.在运行 git remote prune origin 即可删除本地分支release
3.运行git fetch获取新分支release/sprint12