无法删除已消失的本地工作树分支

Question

我无法删除已消失的本地工作树分支。关键字是 local ， worktree分支和 gone 。也就是说，问题Cannot delete a Branch that doesn't exist?与我的不匹配。

在调用git branch -d之前尝试删除工作树文件夹时会发生这种情况。观察：

MINGW64 /d/Tmp
$ mkdir repoA

MINGW64 /d/Tmp
$ cd repoA

MINGW64 /d/Tmp/repoA
$ git init
Initialized empty Git repository in D:/Tmp/repoA/.git/

MINGW64 /d/Tmp/repoA (master)
$ echo a > a

MINGW64 /d/Tmp/repoA (master)
$ git add .

MINGW64 /d/Tmp/repoA (master)
$ git commit -a -m'added a'
[master (root-commit) 2cff3c3] added a
 1 file changed, 1 insertion(+)
 create mode 100644 a

MINGW64 /d/Tmp/repoA (master)
$ git worktree add -b branch-b ../repoB master
Preparing worktree (new branch 'branch-b')
HEAD is now at 2cff3c3 added a

MINGW64 /d/Tmp/repoA (master)
$ rm -rf ../repoB

MINGW64 /d/Tmp/repoA (master)
$ git branch -d branch-b
error: Cannot delete branch 'branch-b' checked out at 'D:/Tmp/repoB'

MINGW64 /d/Tmp/repoA (master)
$ git branch -d branch-b -f
error: Cannot delete branch 'branch-b' checked out at 'D:/Tmp/repoB'

MINGW64 /d/Tmp/repoA (master)
$ git --version
git version 2.19.1.windows.1

更新：

git worktree prune可以删除工作树，但是branch-b仍然存在：

$ git worktree list
D:/Tmp/repoA  2cff3c3 [master]
D:/Tmp/repoB  2cff3c3 [branch-b]

$ git worktree prune

$ git worktree list
D:/Tmp/repoA  2cff3c3 [master]

$ git branch -vv
  branch-b 2cff3c3 added a
* master   2cff3c3 added a

如何删除我不再想要的branch-b？