Bug#1023509: openssh-server: suggestion about (default) sshd_config and sshd_config.d

Postscriptum

My motivation here is related to the point 1. of the following issue:
https://github.com/EXALAB/AnLinux-App/issues/397
The current is to overwrite the /etc/ssh/sshd_config by a file that contents
only:
PermitRootLogin yes

So putting that file in /etc/ssh/sshd_config.d should do the job
but I don't know what could be the result if the /etc/ssh/sshd_config content
the opposite in the following of the Include directive.