Help test the terminology gadget!
@Tranve: Where/on what page doesn't it work? I only see $VARIANT being used in usage notes on the terms "set" and "setting" in Portal:Zh/terminology.json, and when I checked those in Portal:Zh-hans/terminology.json and Portal:Zh-hant/terminology.json, as well as on  for both variants, it seems to be working like it should.
Weird, now I can't reproduce this problem either, and I have no idea why... Maybe we should mark this issue as fixed now and continue discussion if it arises in the future.
@Tranve: Cool! Do you happen to remember how the error manifested itself? Did it show the wrong variant, or something else? If it showed the wrong variant, it could have happened if you were on Special:Translate and switched between hans and hant in the upper right-hand corner. I need to figure out a way for the script to reload when the users switch language (there is already a thread about that on the gadget talk page, but it's not really an easy fix).