textfield_issue (repro of flutter/flutter#55994)
Two branches: master that has the issue, and the fixed branch
run it
type any text in the text field,
naviagate away from this screen or turn off the display.
the data is lost
https://stackoverflow.com/questions/61506546/textfields-text-is-reset-after-screen-goes-off
no issue
fixed with replacing the android folder with another android folder of an older Flutter project