BUR #7586 has been rejected.
create alias open_bra -> undone_bra
According to the wiki article for open bra, this tag is supposed to be applicable only to front-hook_bras, but some of the 1200+ images currently using the tag depict back-hook bras. Meanwhile, undone_bra has only 137 images, but I think people are more inclined to use "undone" to refer to unfastened back-hook bras. I suggest we consider opened front-hook bras to be a subset of undone bras, create a wiki article for undone bra that indicates that it can be used for either front or back hooks, and move the フロントホック Pixiv tag to the front-hook bra article. If you don't agree, you can reverse the alias.