From: Bagas Sanjaya <bagasdotme@gmail.com>
Date: Fri, 06 Aug 2021 12:21:24 GMT
Subject: Re: [BUG] Amending a shallow clone -> orphan branch
Message-ID: <b3083a15-f2da-0eae-b07b-8a641c613906@gmail.com>
In-Reply-To: <64760969-1ead-2bfb-6f98-1161d385c0ca@syntevo.com>

Hi Alexandr, welcome to Git mailing list!

On 06/08/21 07.04, Alexandr Miloslavskiy wrote:
> Consider the following steps :
> 
> git clone --depth 1 --single-branch --branch master 
> https://github.com/git/git
> cd git
>  >1.txt
> git add 1.txt
> git commit --amend
> 
> This results in an orphaned branch, where a single commit contains 
> entire tree.
> 
> I understand that this is a bug, because certainly git knew shallow 
> commit's parents and could reuse that when amending?

I tested that, and below is `git status` after the test (using Git 2.32.0):

> On branch master
> Your branch and 'origin/master' have diverged,
> and have 1 and 1 different commits each, respectively.
>   (use "git pull" to merge the remote branch into yours)
> 
> nothing to commit, working tree clean

So you're amending merge commit by adding dummy file, so that your 
`master` branch becomes divergent against origin. That dummy file isn't 
contained in any commits that are included with that merge commit.

-- 
An old man doll... just what I always wanted! - Clara