[BUG] User Tags not updating via REST API

I have tried to update the _user_tags field using the REST API PUT request, but it doesn’t seem to be working.

For example, I use:

PUT http://localhost:8080/api/resource/Item/p0156_3
data={"_user_tags":",Test123"}

The response I get back from the server after is a 200:OK message, and the data received indicates that the _user_tags field has been updated. However, if I request the Item again (using a GET, or looking on the website), the _user_tags field isn’t actually updated.

Is this intentional? Is there another way that tags are supposed to be edited?

Submitted GitHub Issue:

Please anyone can confirm if this issue was resolved? If yes, how?

Thanks