[compass_app] Unnecessary screen rebuild on navigation

[tsantos84]

I've cloned the compass_app project to investigate a behavior I'm also encountering in my own application. Surprisingly, compass_app exhibits the same issue: when navigating between screens, the previous screen is rebuilt, triggering its data fetching logic and resulting in an unnecessary backend call.

Here's how to reproduce the behavior:

1. Start the application in development mode.
2. Clear the app logs for easier analysis.
3. From the HomeScreen, tap the first activity. This will navigate to the ActivitiesScreen.
4. Examine the logs. You'll see the HomeViewModel logs reappear, indicating that the _load method has been called again.

[tsantos84]

It appears that this issue might be related to the go_router package. There are several open issues in the Flutter repository that seem to be related:

#158934
#147639
#141281

While I’m not entirely sure if these issues are directly related to this specific problem, they might provide some useful context or overlap. It would be great to investigate further to determine if this is a known issue or a new edge case.

[lancelot-koh]

do we have any workaround/suggestion to prevent re-fetch data when page is loading if possible? thks