BUG: commit-graph.c:1068 when doing `git pull`

From: herr.kaste <herr.kaste@gmail.com>
Date: Nov 2, 2020, 18:30 UTC
Message-ID: <CAFzd1+7xQHgaOYKW7WZaWCPdp85Pfk8k_M-gVtBq6Wf7bbJTzg@mail.gmail.com>

Hi all!

I'm stuck with this error message

    $ git pull
    BUG: commit-graph.c:1068: missing parent
104f5eb377763b2ed9663e8949aed265b69f000f for commit
c59ed9b7b6d4268ae6cb1069a9b51e02ad9aa1d8

This happens since the last `fetch --prune origin`.

If I do it again, I get

    $ git pull
    fatal: Unable to create 'C:/Users/c-flo/AppData/Roaming/Sublime
Text 3/Packages/GitSavvy/.git/objects/info/commit-graphs/commit-graph-chain.lock':
File exists.
    ...

And upon removing that file, I get the first error message again.

I actually don't know yet how to move on from here. I'm stuck, so I appreciate any help.

    $ git --version
    git version 2.29.2.windows.1

Regards Caspar Duregger