I think you are on an old version of Discourse and should update.. I am often unclear if you are talking about your hosted instance with us, or something else. in this case based on the additional version information you provided, this was fixed a while ago.
In the interests of wasting less of your time, and less of ours, I suggest you indicate whether you are referring to your hosted instance or something else on an unknown (to me) version.
I alluded to this in my first rely when I said “I think eviltrout fixed something around this recently”. That is your cue to update to latest 