Mariadb Edit Config files minor UI issue

Operating system:
OS version:

Under Mariadb
Go to Edit Config files
In my.cnf,
at the very bottom of the page:

!includedir /etc/my.cnf.d

and after restarting Mariadb.

On top of the editor,
there’s a drop down list and now it only shows my.cnf.

my.cnf.d/~ are no longer there.

Comment out with ‘!’ like put it back to default state
!includedir /etc/my.cnf.d

/etc/my.cnf.d/~ comes back.