BUR #53543 has been approved by @evazion.
create alias watermelon_girl_(goldn) -> goldn_(vtuber)
I discussed it in Discord, and I was advised that the best approach was to submit a BUR aliasing the old character tag to the new VTuber username tag.
The original character and VTuber model are the same design. Artwork from before she became a VTuber would still be tagged Original while new artwork will be tagged Indie Virtual Youtuber.