FlyoutItemIsVisible doesn't work for nested content

[LeoKhariton]

Description

The official Microsoft documentation says:

There's also a Shell.FlyoutItemIsVisible attached property, which can be set on FlyoutItem, MenuItem, Tab, and ShellContent objects.

However, this does not work for nested elements.

Steps to Reproduce

1. Create a new MAUI project.

2. Replace the code in the AppShell.xaml file with

   <?xml version="1.0" encoding="UTF-8" ?>
   <Shell
   x:Class="MauiApp2.AppShell"
   xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
   xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
   xmlns:local="clr-namespace:MauiApp2"
   Shell.FlyoutBehavior="Disabled"
   Title="MauiApp2">
   
   <FlyoutItem>
       <ShellContent
           Title="Home"
           ContentTemplate="{DataTemplate local:MainPage}" />
   
       <ShellContent
           Title="Home"
           ContentTemplate="{DataTemplate local:MainPage}"
           FlyoutItemIsVisible="False"/>
   
   </FlyoutItem>
   </Shell>

3. Despite the fact that the second ShellContent element has the FlyoutItemIsVisible="False" property, it is still displayed in the tab bar panel.

Link to public reproduction project repository

No response

Version with bug

Unknown/Other

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

Windows

Affected platform versions

No response

Did you find any workaround?

No response

Relevant log output

No response

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