Fix leak in input_decorator [prod-leak-fix] #155885

✅ All contributors are covered under a CLA with Google

See https://cla.developers.google.com/ for more info about Google's Contributor License Agreement (CLA).

ℹ️ Googlers: Go here to view more details and manage scans for this pull request.

@polina-c

The following contributors were found for this pull request:

✅ 5f81567 Author: @polina-c <po****.c@live.com>

(Only the first commit for a unique contributor is listed.)