NavigationView: Top-level NavigationViewItem is not shown in Top PaneDisplayMode when one of its children is selected when switching to Top mode

[Felix-Dev]

Describe the bug
When switching from a different PaneDisplayMode to Top PaneDisplayMode the top-level NavigationViewItem is not explicitly shown in the pane when it has a selected child.

Ignore the missing selection indicator, this is tracked in #2813.

Steps to reproduce the bug

1. Open the MUXControlsTestApp
2. Go the NavigationView tests page -> Hierarchical NavigationView Markup Test page
3. Watch the GIF below:

Expected behavior

Menu Item 29 should be shown in Top PaneDisplayMode as its child is selected:

Version Info

NuGet package version:
Newest WinUI builds directly from the master branch.

Device form factor	Saw the problem?
Desktop	Yes
Xbox
Surface Hub
IoT

Additional context
This issue - as of now - will be fixed by PR #1997.

[StephenLPeters]

Seems like a good bug. @ad1Dima I see you mentioned this but can't find the corresponding message. Does your change fix this?

[Felix-Dev]

@StephenLPeters I ran the MUXControlsTestApp in @ad1Dima's branch and could not reproduce this error (see [Additional context] above).

[StephenLPeters]

Ah, great, sorry I missed that.

[ad1Dima]

@StephenLPeters i guess this can be closed also

[StephenLPeters]

Fixed by #1997

[Felix-Dev]

Hmm, not sure what happened here but I can still repro this issue on newest WinUI master builds:

The expected result would be that Menu Item 29 is visible and selected when switching back to top navigation after selecting its child item.

[StephenLPeters]

Dang, I'd say lets reopen the issue but looks like I never closed it. Maybe my subconscious knew it wasn't resolved

[github-actions]

This issue is stale because it has been open 180 days with no activity. Remove stale label or comment or this will be closed in 5 days.