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From:   =?UTF-8?B?QW5kcnplaiBPxZttaWHFgm93c2tp?= <me@osmialowski.net>
Date:   Sat, 13 Jan 2018 01:09:40 +0100
Message-ID: <CAHLNBdVp0VTqtxHQ_cQ2XPMMDhqnQG5boj0M2JrT-iECaFUFZA@mail.gmail.com>
Subject: Git uses wrong subkey for signing commits with GPG key
To:     git@vger.kernel.org
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I have an issue with git and signing commits with GPG subkey.

My setup:
- master key used for certification only
- subkey for my main workstation
- subkey for my mobile workstation (a notebook).

Both subkeys are used for signing only.

I've configured git to use my specific subkey however it does not
work: git config --global user.signingkey = KEYID. Every commit is
being signed using the newest subkey. I've verified the same behavior
on three systems (although with the same setup). I've tried to use
--gpg-sign=KEYID flag, but it does not work either.

Environment:
OS: Archlinux
Shell: ZSH
GPG: 2.2.4
Git: 2.15.1.

Is there any other info I shall provide?