UISearchBar bug - the search bar prompt field is overlaying the searchbar textfield in iOS11.

We have ound a problem with the Prompt label field in the UISearchBar. (tested in iOS beta 6 and 7). It used to be above and outside the Search field . It now appears over the Search field - near the top - but overlapping any Search text you enter and looks very ugly. Reproducible using Apples Example code

https://developer.apple.com/library/content/samplecode/TableSearch_UISearchController/Introduction/Intro.html

See screenshot here:-

http://seanav.net/UISearchBarPromptiOS11.png

We have filed a radar for this - 34036408