Re: [PATCH] diff-tree: read the index so attribute checks work in bare repositories

> On 12/05, Eric Sunshine wrote:
>> 557a5998d (submodule: remove gitmodules_config, 2017-08-03) touched a
>> fair number of built-in commands. It's not clear from the current
>> patch's commit message if diff-tree is the only command which
>> regressed. Is it? Or are other commands also likely to have regressed?
>> Perhaps the commit message could say something about this. For
>> instance: "All other commands touched by 557a5998d have been audited
>> and were found to be regression-free" or "Other commands may regress
>> in the same way, but we will take a wait-and-see attitude and fix them
>> as needed because <fill-in-reason>".
>
> I don't know if any other commands have regressed.  This was such an odd
> regression that I think it would be difficult to say for certain that
> there couldn't be others.  I did go through the affected builtins to see
> if I could find anything.  I came up empty handed so I think we should
> be ok.