Git log --decorate show prefetch objects

[Alexandre Badez <alexandre@xxxxxxxx>]

# What did you do before the bug happened? (Steps to reproduce your issue)

<on a git repository not fetch from a "long" time so you have missing 
branches and/or objects>

git maintenance run --task=prefetch

git log --oneline --decorate --all --graph

NOTE: here:
    - xxxxxxx commits are local commits,
    - yyyyyyy commits are remote commits fetch previously,
    - zzzzzzz commits are remote commits prefetch.

    * xxxxxxx (HEAD -> current-dev, origin/master, origin/HEAD) feat
    * xxxxxxx feat
    | * yyyyyyy (origin/feature) feat
    |/
    * xxxxxxx feat
    | * yyyyyyy (origin/a-fix) fix
    |/
    * xxxxxxx fix
    | * zzzzzzz feat
    | * zzzzzzz feat
    | * zzzzzzz feat
    |/
    * xxxxxxx feat
    | * zzzzzzz feat
    |/
    * xxxxxxx fix


According to the git-log  documentation (cf: 
https://git-scm.com/docs/git-log#Documentation/git-log.txt---all ):

    --all Pretend as if all the refs in refs/, along with HEAD, are 
listed on the command line as <commit>.

But the --decorate (cf: 
https://git-scm.com/docs/git-log#Documentation/git-log.txt---decorateshortfullautono 
):

    --decorate
    Print out the ref names of any commits that are shown. If short is 
specified,
    the ref name prefixes refs/heads/, refs/tags/ and refs/remotes/ 
will not be printed.
    [...]
    The option --decorate is short-hand for --decorate=short.

Documentation of maintenant prefetch (cf: 
https://git-scm.com/docs/git-maintenance#Documentation/git-maintenance.txt-prefetch 
):

    The prefetch task updates the object directory with the latest 
objects from all registered remotes.
    For each remote, a git fetch command is run.
    The configured refspec is modified to place all requested refs 
within refs/prefetch/.
    Also, tags are not updated.



# What did you expect to happen? (Expected behavior)

I would have prefer this output (prefetch not shown):

    * xxxxxxx (HEAD -> current-dev, origin/master, origin/HEAD) feat
    * xxxxxxx feat
    | * yyyyyyy (origin/feature) feat
    |/
    * xxxxxxx feat
    | * yyyyyyy (origin/a-fix) fix
    |/
    * xxxxxxx fix
    * xxxxxxx feat
    * xxxxxxx fix

Or this output (prefetch properly decorated):

    * xxxxxxx (HEAD -> current-dev, origin/master, origin/HEAD) feat
    * xxxxxxx feat
    | * yyyyyyy (origin/feature) feat
    |/
    * xxxxxxx feat
    | * yyyyyyy (origin/a-fix) fix
    |/
    * xxxxxxx fix
    | * zzzzzzz (refs/prefetch/remotes/origin/anotherfeat) feat
    | * zzzzzzz feat
    | * zzzzzzz feat
    |/
    * xxxxxxx feat
    | * zzzzzzz (refs/prefetch/remotes/origin/anotherotherfeat) feat
    |/
    * xxxxxxx fix


# What happened instead? (Actual behavior)

Prefetch object are return and not properly decorated.



# What's different between what you expected and what actually happened?

I would have preferd prefetched objects not displayed


# Information

[System Info]
git version: git version 2.44.0
cpu: x86_64
no commit associated with this build
sizeof-long: 8
sizeof-size_t: 8
shell-path: /bin/bash
bash version: 5.2.26
uname: Linux 6.8.1 #1-NixOS SMP PREEMPT_DYNAMIC Fri Mar 15 18:19:29 UTC 
2024 x86_64
compiler info: gnuc: 13.2
libc info: glibc: 2.39
$SHELL (typically, interactive shell): /bin/fish