I have a fully upgraded Skull of Dire helmet...i bought another one from Xur (for the sole purpose of Dismantling), it overtook my originally upgraded Skull of Dire helmet...i thought it would install in a slot so i can dismantle it...what's the purpose of having it available to purchase (by having one) if it overwrites the original? now i have to upgrade this shit all over again!!! is this a known thing? if i dismantle it, will my other one come back or will both just be lost?