pullできない場合
shell-session
❯ git pull
error: cannot lock ref 'refs/remotes/origin/branch': 'refs/remotes/origin/branch2' exists; cannot create 'refs/remotes/origin/branch'
From github.com:ABC/DEF
! [new branch] branch -> origin/branch (unable to update local ref)
下記で解消
shell-session
❯ git remote prune origin