TinyMCE one class per element.

[elabx]

I am using TinyMCE to define UIkit buttons, but have come across the issue that editors end up with buttons that look like:

"uk-button uk-button-primary uk-button-secondary"

Because it merges all the added classes, when ideally i'd only want uk-button-primary OR uk-button-secondary

I see it's discussed here what to do and didn't really understand so wanted to ask if someone knows the details on how to configure this in ProcessWire.

https://github.com/tinymce/tinymce/issues/4035

Thanks in advance!