One of the fixes for
MDEV-19876 added a "chown" call to mysql_install_db:
This essentially introduces a new limitation that mysql_install_db has to be run as root. This is not ideal for all users.
The "chown" call didn't actually fix
MDEV-19876, so maybe we should remove it. The proper fix for MDEV-19876 required changing the RPM's post-installation script:
In my opinion, a packaging script seems like a more appropriate place for a fix like this than mysql_install_db does.