git update-ref -d

これだけだと devel/2023-12-14 を pull できない

git branch -d devel

error: cannot lock ref 'refs/remotes/origin/devel/2023-12-14': 'refs/remotes/origin/devel' exists; cannot create 'refs/remotes/origin/devel/2023-12-14'
From github.com:spin-dd/taihei-epm-server
 ! [new branch]          devel/2023-12-14 -> origin/devel/2023-12-14  (unable to update local ref)
error: some local refs could not be updated; try running
 'git remote prune origin' to remove any old, conflicting branches

update-ref でクリアされる

git update-ref -d refs/remotes/origin/devel