git-send-email does not use conditional configuration

Hello,

In my git configuration, I have an includeif section for work related repositories that configures the user and sendemail sections.

I can verify that the configuration is read correctly by git:

% git config --get-regex "sendemail.*" sendemail.smtpencryption tls sendemail.smtpserver smtp.office365.com sendemail.smtpserverport 587 sendemail.smtpuser dalamagkidis@work.com

But when running git send-email the default sendmail is used:

% git send-email --dry-run 0001*
[...]
Dry-OK. Log says:
Sendmail: /usr/sbin/sendmail -i test@example.com dalamagkidis@work.com
From: Konstantinos Dalamagkidis <konstantinos@dalamagkidis.info>
To: test@example.com
Cc: Konstantinos Dalamagkidis <dalamagkidis@work.com>
[...]

If I move the sendemail section to the main gitconfig file, it works as expected. I normally use v2.20.1, but I could also reproduce this with v2.23.

Rgds Konstantinos