What is wrong with the search function after the recent update?

In Ibook the search stays high-lighted until a page is turned...why?

What's the idea behind that?

You used to search, tap on the result you liked and go to the page with the result highlighted.

When tapping the screen, the high-light would disappear....

now you can tap till you are blue in the face... the search/result stays highlighted... again why?