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> I did a bit more digging of the history, and came up with this,
> which would be with a clearer and fairer description. Also to
> clarify, I spelled what Michal's "This" meant to refer to.
>
> -- >8 --
> From: Michal Sojka <sojkam1@fel.cvut.cz>
> Date: Mon, 3 Nov 2014 11:09:51 +0100
> Subject: [PATCH] submodule: clarify documentation for update subcommand
>
> e6a1c43a (document submdule.$name.update=none option for gitmodules,
> 2012-05-10) meant to say "Unlike the case where your .update
> configuration is set to either 'rebase' or 'merge', when it is set
> to 'none', the tip of the submodule would never move. You can use
> the --checkout option if you want the contents of the submodule to
> be updated to some other commit."
>
> But the resulting text made it sound as if using "--checkout" would
> have no effect when .update configuration is set to 'rebase' or
> 'merge', which was misleading. In fact, with the "--checkout"
> option, the tip of the submodule moves to the exact commit that is
> recorded in the superproject tree, regardless of .update
> configuration.
>
> Signed-off-by: Michal Sojka <sojkam1@fel.cvut.cz>
> Signed-off-by: Junio C Hamano <gitster@pobox.com>
> ---
> Documentation/git-submodule.txt | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/Documentation/git-submodule.txt b/Documentation/git-submodule.txt
> index 8e6af65..648323f 100644
> --- a/Documentation/git-submodule.txt
> +++ b/Documentation/git-submodule.txt
> @@ -158,7 +158,7 @@ update::
> checkout the commit specified in the index of the containing repository.
> This will make the submodules HEAD be detached unless `--rebase` or
> `--merge` is specified or the key `submodule.$name.update` is set to
> - `rebase`, `merge` or `none`. `none` can be overridden by specifying
> + `rebase`, `merge` or `none`. The configuration can be overridden by specifying
> `--checkout`. Setting the key `submodule.$name.update` to `!command`
> will cause `command` to be run. `command` can be any arbitrary shell
> command that takes a single argument, namely the sha1 to update to.
Jens Lehmann <jens.lehmann@web.de>