🐛 Closing a PaneItemExpander close the app

[AlexisL61]

Describe the bug
When closing a PaneItemExpander, the app close itself.

To Reproduce
Steps to reproduce the behavior:

1. Go to https://bdlukaa.github.io/fluent_ui/
2. Click on NavigationView
3. Click on account in the example
4. Click again on account to close the expander

Expected behavior
The Expander should close, and not the app

[h3x4d3c1m4l]

Looks like a crash, the window goes to black and it prints this error:

Unhandled Exception: 'package:fluent_ui/src/controls/flyouts/flyout.dart': Failed assertion: line 470 pos 12: 'isAttached': This controller must be attached to a FlyoutTarget

The error gets printed when you open the PaneItemExpander, but it only goes to black when you close the PaneItemExpander.

[diegotus]

hi, i just upgrade to 4.2.0 but this issue seems to not be fixed.

Add from git is wrorking:
fluent_ui:
git: https://github.com/bdlukaa/fluent_ui.git

but adding with version nother seems to not work. and also Flyout is not found
fluent_ui: ^4.2.0

[h3x4d3c1m4l]

There has not been a release yet containing the fix.

Please wait a little more or, as you mentioned yourself, use the git solution meanwhile :) !

[longfit]

error click at PaneItemExpander

I use
git: https://github.com/bdlukaa/fluent_ui.git
which can fix below error at Linux , ios , windows

But I still came below error message at android , no matter using 4.3.0

error message from android debug:

void _ensureAttached() {
assert(isAttached, 'This controller must be attached to a FlyoutTarget');