Re: [PATCH v3 4/9] pack-bitmap: don't rely on bitmap_git->reuse_objects

> I think by dropping these hunks now, the state of the code at this point
> would mean that we might write the objects twice. We'd mark them as
> "reused" and send them as part of write_reused_pack(). But we'd also
> send them to pack-objects via the show_reachable_fn callback, and it
> would add them to the usual packing list.
>
> And indeed, t5310.10 fails at this point in the series with:
>
>   Cloning into bare repository 'clone.git'...
>   remote: Enumerating objects: 331, done.
>   remote: Counting objects: 100% (331/331), done.
>   remote: Compressing objects: 100% (111/111), done.
>   remote: Total 662 (delta 108), reused 331 (delta 108), pack-reused 331
>   Receiving objects: 100% (662/662), 53.14 KiB | 17.71 MiB/s, done.
>   Resolving deltas: 100% (216/216), done.
>   fatal: The same object 00c1d3730931e66eb08dabe3a3c9fa16621d728a appears twice in the pack
>   fatal: index-pack failed
>
> and then starts working again after the final patch.