So, everyone knows about that handy little back button that appears in the upper left of the screen when you, say, tap on a notification banner. However, I've been running iOS 9 beta since July when it was released to the public, and I've never seen this. A forward button. It did what it said. Took me to safari, Twitter.com. I don't remember what triggered it to appear.. I could reproduce at the time though. Something like searching someone's Twitter profile on safari, then I opened their profile with Twitter, but there was a forward button to their profile on safari again. I don't think that's what it was but it was a general idea at what kind of happened, I can't remember correctly. Sort of redundant, but weird/interesting nonetheless. Anybody else see this?