Hi!I might have stumbled upon a little problem:It seems like [[[UIDevice currentDevice] identifierForVendor] UUIDString] is returning different values after app update. I haven't confirmed it, but I have a hunch, as we've been using it as a secret for storing our session token, and a lot of users seem to be logged out after updating the app. I know there has been a similar bug before, but I'm wondering whether or not this issue has just resurfaced recently.Any hints would be greatly appreciatedEDIT:I'm storing my data in NSUserDefaults, maybe this bug is kicking in?https://forums.developer.apple.com/thread/71267?sr=stream&ru=2545EDIT2: The organisation recently changed names, via a support ticket sent to apple. Could this influence the generation of the identifierForVendor?