Steps to reproduce the issue

For example:

• System ->Global Configuration -> Server

• Enable FTP

• Fill in the FTP fields

Expected result

The FTP settings are saved in the configuration file.

Actual result

The configuration file is not updated. The new configuration is only saved in the session. If you log out and log in again, the changed configuration is lost.

System information (as much as possible)

The last nightly build.

Additional comments

@SharkyKZ , we have opcache_invalidate in the config component.