possible bug: --bare vs --mirror with respect to remote-tracking branches

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Please answer the following questions to help us understand your issue.

What did you do before the bug happened? (Steps to reproduce your issue)
  git clone <url> --mirror
  git --git-dir=<dir> --work-tree=<working directory> branch -r

What did you expect to happen? (Expected behavior)
  Remote-tracking for branches is supposed to be included (and would show up in
  `git branch -r`)

What happened instead? (Actual behavior)
  No remote-tracking branches (`git branch -r` is empty)

What's different between what you expected and what actually happened?
  Should see `origin/HEAD`and so on...but it's still empty

Anything else you want to add:
  I found the solution here:

    https://stackoverflow.com/questions/38981470/git-clone-create-a-bare-clone-but-with-remote-tracking-branches-for-a-worktre

  `git config --local --add remote.origin.fetch
"+refs/heads/*:refs/remotes/origin/*"`  seems to do it.

  The original value was:
      [remote "origin"]
        ...
        fetch = +refs/*:refs/*

  Running that command added another line:
      [remote "origin"]
        ...
        fetch = +refs/*:refs/*
        fetch = +refs/heads/*:refs/remotes/origin/*

  Running `git remote update` afterwards gets me the desired remote-tracking.


Please review the rest of the bug report below.
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[System Info]
git version:
git version 2.37.1
cpu: x86_64
no commit associated with this build
sizeof-long: 8
sizeof-size_t: 8
shell-path: /bin/sh
uname: Linux 5.18.14-arch1-1 #1 SMP PREEMPT_DYNAMIC Sat, 23 Jul 2022
11:46:17 +0000 x86_64
compiler info: gnuc: 12.1
libc info: glibc: 2.35
$SHELL (typically, interactive shell): /bin/bash


[Enabled Hooks]