Config not updated when it has mixed levels

[ryanmitchell]

We are using this library in the Statamic Mailchimp add-on, but there is an issue when saving the config: statamic-rad-pack/mailchimp#100

The issue seems to be coming from these lines in ConfigUpdater - in our case we are passing an array of mixed levels (some with no children, some with children) and it only returns those with children.

If I comment those lines out, updating work fine.

Our code is pretty simple: ConfigWriter::writeMany('mailchimp', $data);

Are we doing something wrong, or is it a bug?

[JohnathonKoster]

This will take some time to review and fully debug, and see if a solution can be found. The highlighted lines cannot be removed with the way things are currently implemented.

[ryanmitchell]

Appreciate you looking into it - if you need anything else from me just let me know.