[Search] Search and back button

[pubiqq]

90-12.mp4

Steps to reproduce:

• Open any Search demo
• Tap the search bar to expand it
• Before the expansion animation completes, tap the back button

Material Library version: 889a391

Device: Pixel 8 (API 36)

[dsn5ft]

I believe this should be fixed, at least for all realistic use cases, by 41ace81.

Feel free to reopen if not.