What did you expected to happen?
The search bar not to be available just rotating the device while in routing preview
What happened instead?
I can tap on the search screen and search for a new place. This dumps me out of the routing preview flow and seems to orphan drawn poly lines on the map, and leaves a weird gray pin as well over your current location.
Steps to reproduce:
Route to a destination.
Rotate the device.
Notice the search bar is available for a few seconds, and tap into it to search.
Attach a screenshot
It's hard to grab a screen shot mid test, but here's the ultimate outcome of the above process.
Wow nice catch. The action bar only shows for about a second for me before animating off the screen but when I tap it I get the exact same behavior described.