Some wired thing I noticed-- iPhone 7

For some reason, in the "click home button to unlock" screen, if you click the power button over and over, you get two sliders. One is a "swipe to power off" and one is "sos emergency call". If you click x to close, the passcode screen opens and (even if you have not even touched the home button) it says "touch id does not recognize your fingerprint", followed by "your passcode is required to enable touch id". Anyone have any ideas why? (Could be a thing for the devs to test the doesn't recognise passcode thing)