[CP] Allow OverlayPortal to be added/removed from the tree in a layout callback #131002
Description
Issue Link
Commit Hash
Target
beta
PR Link
Changelog Description
The application asserts when a Tooltip is opened/closed in a layout callback, typically in a LayoutBuilder or when scrolled away in a ListView.
Impacted Users
Tooltip widget users, especially those use it in a ListView
Impact Description
App asserts in debug mode
Workaround
No easy workaround.
Risk
low
Test Coverage
yes
Validation Steps
Either follow the steps provided in #130668, or run the test added in the fix: https://github.com/flutter/flutter/pull/130670/files#diff-d078821c55cd4390761f5928348ab73b271c76edb7c9a440af7edb08ad6896d7