On some iPhones:
![スクリーンショット 2020-05-29 9 01 44](https://user-images.githubusercontent.com/13585047/83242710-c032ae00-a194-11ea-89f8-6e2e944b0ca3.png)
There's a table view under the tab bar, and I can scroll the table view, such that the table view contents is visible between the top of the tab bar, and the top of the screen. Isn't the tab bar supposed to be extended to the very edge of the screen?