buttons detach from the bottom of the screen when dragged

[Samer Masterson]

If you drag the screen down, let go, and then drag the screen up as far as it can go, the button UI detaches itself from the bottom of the screen, and you can see the background gradient below it. This bug does not manifest if the screen is in a neutral position (the position it starts in when the app boots up), or if you do not let go when you drag the screen down and up.

Normal Behavior:
1. Start Calculator App
2. Drag the screen up
3. The text "pull to start new calculation" appears". Notice that the buttons do not detach from the bottom of the screen.

Normal Behavior:
1. Start Calculator App
2. Drag the screen down, do not let go of the mouse button
3. While holding down the mouse button, drag the screen back up as far as it can go.
4. The text "pull to start new calculation" appears". Notice that the buttons do not detach from the bottom of the screen.

How to reproduce the bug:
1. Start Calculator App
2. Drag the screen down
3. Let go of the mouse button
4. Drag the screen up
5. Notice that the buttons detached from the bottom of the screen
*Expected result*
5. The text "pull to start new calculation" appears". The buttons do not detach from the bottom of the screen.

[Riccardo Padovani (rpadovani)]

Thanks for reporting, but this is not valid anymore with new design we're implementing - and we don't want to fix that in the old app, sorry!