Hi! I have been looking at the Chanel Gabrielle for a while now. I am looking at preloved bags and I’ve come to notice that the leather tab which has the authenticity sticker on it, has different shapes. Mostly I see straight edges, but some also have cut corners. After browsing on purseforum I read that round corners are fakes. I have read in the same thread that the straight corners are authentic, but that still leaves me with the cut corners. Can somebody tell me if they know if Chanel not only changes the authenticity code stickers yearly, but also the shape of the leather tabs can vary? Thanks!