Self Mystery Skin Gift Bug

IDK what the limit is for self myster skin gift but I purchased 2 mystery skins for myself before reaching the limit by selecting skins and then selecting the mystery gift. Moments later when I clicked back on the store. I was on the featured page and it showed the Mystery Skin again was available to purchase. I was then able to buy up to 6 more mystery skins before I clicked back on skins and went back to featured page only to see the mystery skin limit was reached. I don't think its game breaking but I don't think that was intentional lol made me spend like 4k rp in like 5 mins lol. I'm on NA server.