[Navigation] Page stack support when using Region.Attached="True"

[eriklimakc]

Current behavior

In a typical navigation flow with Uno.Extensions.Navigation, where MainPage is a standard page (without NavigationView or TabBar), navigating to SecondPage successfully builds a navigation stack. This allows returning to MainPage without needing to specify a DependsOn: "Main" in SecondPage's RouteMap.

However, when using NavigationView or TabBar in MainPage, along with a <Grid uen:Region.Attached="True" uen:Region.Navigator="Visibility" /> to render pages, specifying DependsOn in the RouteMap becomes necessary to maintain the page stack and enable back navigation.

So if we have a page that can be navigated to from multiple pages, defining multiple RouteMaps for that page becomes necessary.

Expected behavior

How to reproduce it (as minimally and precisely as possible)

Environment

Nuget Package (s):

Package Version(s):

Affected platform(s):

• All

[eriklimakc]

Repro2604.zip