If at least one option is selected, the cleaner-x-button is displayed and highlighted when hovered.

But it can not be used, until the options-list is opened.

The same is true for displayed selected options. There is an x inside the option, but it too only works, if the options-list is opened.

You can easly test this with your own examples at:
https://coreui.io/angular/docs/forms/multi-select

Try to use the x for the whole c-multi-select or one of the two selected options.

Expected behavior:
The cleaner-buttons should work, if the options-list is visible or not