Clone Tool Isn't working as expected. What am I doing wrong?

I've kinda ignored the clone tool as I thought it was useless. Now I find out that it isn't working as expected on my system. I'd be happy with any pointers as to how to refresh clones.

For example, if I change anything about a clone of artistic text, then ANY link to editing the text is gone.

A demonstration.

Is this as expected? or is it not working right for me? Or am I missing a step?