Tap Events Incorrectly passed Through Button

[david-maw]

Description

Clicks are passed through a button to the underlying control, for example using this XAML:

    <ContentPage.ToolbarItems>
        <ToolbarItem Text="Clear Log" Command="{Binding ClearLogCommand}"/>
    </ContentPage.ToolbarItems>
    <Grid>
        <Grid.GestureRecognizers>
            <TapGestureRecognizer 
                CommandParameter="On Page Root (Grid)"
                Command="{Binding ShowTapCommand}"/>
        </Grid.GestureRecognizers>

        <Border Padding="2">
            <Label Text="{Binding CommandLog, TargetNullValue='No events logged' }" FontSize="Micro"/>
        </Border>
        <Button Text="Clear Log" Command="{Binding ClearLogCommand}" VerticalOptions="End"/>
    </Grid>

Tapping anywhere on the page will log an event on the page, tapping the button, or the ToolBar item, should clear the log page but tapping the button ALSO registers a tap on the page.

It works correctly on Android or using Microsoft.Maui.Controls Version 9.0.14, it just fails on 9.0.21.

Steps to Reproduce

1. Clone the repository, build and run the app on Windows
2. Tap on the center of the page and a Tap will be logged
3. Tap on the toolbar item and the log will be cleared and a message written to it to that effect.
4. Tap on the button and the log will be cleared but ALSO a tap on the page will be logged.
5. Repeat on Android or with an earlier Microsoft.Maui.Controls and tapping the button will just clear the log, as expected.

Link to public reproduction project repository

https://github.com/david-maw/SimpleCollectionView-Propagation.git

Version with bug

9.0.21 SR2.1

Is this a regression from previous behavior?

Yes, this used to work in .NET MAUI

Last version that worked well

9.0.14 SR1.4

Affected platforms

Windows, I was not able test on other platforms

Affected platform versions

Windows 11

Did you find any workaround?

No

Relevant log output