BUG: config.c:129: kvi should not be set while parsing a config source

[Jesse Kasky <jkasky@slack-corp.com>]

Thank you for filling out a Git bug report!
Please answer the following questions to help us understand your issue.

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

git clone --no-checkout --sparse --filter=blob:none --depth=1 <repo> <dir>
cd <dir>
git sparse-checkout add <dir1> <dir2>
git fetch --depth=1 origin <commit>

What did you expect to happen? (Expected behavior)

Expected the fetch to complete

What happened instead? (Actual behavior)

Received the following error:

BUG: config.c:129: kvi should not be set while parsing a config source
[1]    5842 abort      /opt/homebrew/bin/git fetch --depth=1 origin

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

Did not expect to encounter an abort.

Anything else you want to add:

Two items I came across while trying to troubleshoot:
https://github.com/git/git/commit/9828453ff00b330c57daa3a8b672cbb5f0cdce34
https://github.com/Homebrew/homebrew-cask-fonts/issues/7718

Please review the rest of the bug report below.
You can delete any lines you don't wish to share.


[System Info]
git version:
git version 2.41.0
cpu: arm64
no commit associated with this build
sizeof-long: 8
sizeof-size_t: 8
shell-path: /bin/sh
feature: fsmonitor--daemon
uname: Darwin 22.5.0 Darwin Kernel Version 22.5.0: Mon Apr 24 20:52:24
PDT 2023; root:xnu-8796.121.2~5/RELEASE_ARM64_T6000 arm64
compiler info: clang: 14.0.3 (clang-1403.0.22.14.1)
libc info: no libc information available
$SHELL (typically, interactive shell): /bin/zsh


[Enabled Hooks]