Re: [PATCH 2/3] config: fix case sensitive subsection names on writing

Stefan Beller [off-list ref] writes:

A use reported a submodule issue regarding strange case indentation
issues, but it could be boiled down to the following test case:

  $ git init test  && cd test
  $ git config foo."Bar".key test
  $ git config foo."bar".key test
  $ tail -n 3 .git/config
  [foo "Bar"]
        key = test
        key = test

Sub sections are case sensitive and we have a test for correctly reading
them. However we do not have a test for writing out config correctly with
case sensitive subsection names, which is why this went unnoticed in
6ae996f2acf (git_config_set: make use of the config parser's event
stream, 2018-04-09)

Am I correct to understand that this patch is a "FIX" for breakage
introduced by that commit?  The phrasing is not helping me to pick
a good base to queue these patches on.

Thanks.