Avalonia AOT: XamlLoadException - No precompiled XAML found for ResourceInclude

[JAYY513]

Issue description:
I'm encountering an issue when building my Avalonia application using Ahead-of-Time (AOT) compilation. At runtime, the following exception occurs when dynamically loading XAML resources:

Exception details:

Exception Type: XamlLoadException
Message: No precompiled XAML found for avares://TempMonitorSystem/Assets/MediumFont.axaml (baseUri: avares://TempMonitorSystem/Assets/MediumFont.axaml), make sure to specify x:Class and include your XAML file as AvaloniaResource
Source: <unknown>
Target Site: N/A
Stack Trace:
   at Avalonia.Markup.Xaml.AvaloniaXamlLoader.Load(IServiceProvider, Uri, Uri) + 0x52b
   at Avalonia.Markup.Xaml.Styling.ResourceInclude.get_Loaded() + 0x29
   at Avalonia.Markup.Xaml.Styling.ResourceInclude.Avalonia.Controls.IResourceProvider.AddOwner(IResourceHost) + 0xd
   at Avalonia.Collections.AvaloniaListExtensions.<>c__DisplayClass1_0`1.<ForEachItem>g__Add|0(Int32, IList) + 0x82
   at Avalonia.Collections.AvaloniaList`1.NotifyAdd(T, Int32) + 0x72
   at TempMonitorSystem.App.UpdateResourceDictionary(IResourceProvider, String[]) + 0xa3
   at TempMonitorSystem.AppConfiguration.Configure(App) + 0x19e
   at TempMonitorSystem.App.OnFrameworkInitializationCompleted() + 0x6d
   at Avalonia.ClassicDesktopStyleApplicationLifetimeExtensions.StartWithClassicDesktopLifetime(AppBuilder, String[], Action`1) + 0x2f
   at TempMonitorSystem.Desktop.Program.Main(String[] args) + 0x149

Relevant code snippet:
The error occurs specifically when dynamically loading font resources at runtime:

public void UpdateFontResource(string sizeKey)
{
    var themeUri = new Uri($"avares://TempMonitorSystem/Assets/{sizeKey}Font.axaml");
    var resourceInclude = new ResourceInclude(themeUri)
    {
        Source = themeUri
    };

    UpdateResourceDictionary(resourceInclude, "LargeFont.axaml", "MediumFont.axaml", "SmallFont.axaml");
}

private void UpdateResourceDictionary(IResourceProvider newDict, params string[] endings)
{
    foreach (var item in Resources.MergedDictionaries.ToList())
        if (item is ResourceInclude ri && ri.Source != null &&
            ri.Source.AbsoluteUri.StartsWith("avares://TempMonitorSystem/Assets/") &&
            endings.Any(ending => ri.Source.AbsoluteUri.EndsWith(ending)))
            Resources.MergedDictionaries.Remove(item);

    Resources.MergedDictionaries.Add(newDict);
}

<ResourceDictionary
    xmlns="https://github.com/avaloniaui"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

    <x:Double x:Key="H1">36</x:Double>
  ...

[maxkatz6]

See this issue for details and workarounds
#18292