Removing the entire ContentPage.Resources element does not trigger the UI updates

[mattleibow]

Description

I am using XAML Hot Reload...

Using the default maui template, I can add/remove/change properties in resource dictionaries - and even remove the whole dictionary.

But, if I remove the entire <ContentPage.Resources> node, then the controls are not updated.

Steps to Reproduce

1. File | New | Maui app
2. Run
3. Add this xaml

   <ContentPage.Resources>
       <ResourceDictionary>
           <Style TargetType="Button">
               <Setter Property="Background" Value="Red" />
           </Style>
       </ResourceDictionary>
   </ContentPage.Resources>

4. Observe the button background is now red
5. Change the value to "Blue"
6. Observe the button is now blue
7. Delete the <ResourceDictionary>
8. Observe the button is now the default purple again
9. Undo the change (add the <RD> back)
10. Observe the button is blue/red agan
11. Delete the entire <ContentPage.Resources> node
12. Observe the color is not purple

Link to public reproduction project repository

File | New | Maui app and use the snippet

Version with bug

Unknown/Other (please specify)

Last version that worked well

Unknown/Other

Affected platforms

Windows, Android, I was not able test on other platforms

Affected platform versions

Tested on Windows 11

Did you find any workaround?

No response

Relevant log output

No response

[ghost]

We've moved this issue to the Backlog milestone. This means that it is not going to be worked on for the coming release. We will reassess the backlog following the current release and consider this item at that time. To learn more about our issue management process and to have better expectation regarding different types of issues you can read our Triage Process.

[jonathanpeppers]

This is duplicate of: #11082

When you remove a <Setter Property="Background" Value="Red" />, then it doesn't know the original value of what Background should be.

[samhouts]

Duplicate of #11082