How to get tags to auto-accept?

[Sword_of_Spirit]

From what I can tell, there is supposed to be a way to get it to auto-accept/apply a tag to a topic when you type it (at least, that is what the documentation implies). But I can't figure out how to make it work.

Actual Example:
In a topic with the Race snippet, I'd like to be able to type in an ethnicity in the text field after selecting the race from the tag list. I want the software to recognize the tag is there, and apply it to the snippet.

I first created a new tag domain "Ethnicity." I then created a few sample tags within it. The domain and the tags within it are "Shown." I checked the auto-accept box, and set priority to Normal (I tried Prefer too, but it made no difference.)

I then created a new topic. I type in a name of an ethnicity I created as a tag, "Dimernesti" (I tried the others I put in also). All I get is text. The tag section over on the right has other tags, but it does not have this tagged. No prompt, nor auto-accept.

I even added a snippet with that tag domain into the exact section of the exact category that I am making topics in, and then tried typing the text in a new topic created from that category. Nothing.

I saw that there is a global "Auto-Accept" option, but that seems to be related to link text, not tags, and it doesn't look like it functions like the info bubble says that tag auto-accept option is supposed to. I'm assuming it is something else entirely, but I turned it on just in case (works on links).

So what am I doing wrong?