Unable to set Window Title in XAML

Describe the bug

In WinUI3preview3, unable to build a project if set the Window Title in XAML.

Steps to reproduce the bug

1. Create a new Blank App, Packaged (WinUI in Desktop)
2. Change the content of MainWindow.xaml to add the following on line 8

<Window
    x:Class="App68.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:App68"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    Title="my app"
    mc:Ignorable="d">

1. Build the solution
2. See an exception:

MainWindow.xaml(8,5): XamlCompiler error WMC0612: The XAML Binary Format (XBF) generator reported syntax error '0x09C4' : Property Not Found

1. Remove the change in the XAML file and set the window Title in the constructor. e.g.:

    public MainWindow()
    {
        this.InitializeComponent();
        this.Title = "my app";
    }

1. Run the app and see the title displayed correctly.

Expected behavior

It should be possible to set the Window Title in XAML.

Screenshots

Version Info

NuGet package version: Microsoft.WinUI 3.0.0-preview3.201113.0

Windows app type:

UWP	Win32
	Yes

Windows 10 version	Saw the problem?
Insider Build (xxxxx)
May 2020 Update (19041)	Yes
November 2019 Update (18363)
May 2019 Update (18362)
October 2018 Update (17763)
April 2018 Update (17134)
Fall Creators Update (16299)
Creators Update (15063)

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

Additional context

[marb2000]

Unfortunately, per the latest engineering plan, the bug fix won’t make the v1.0 Stable release (GA) and was moved to v1.1

[younky-yang]

This is ridiculous as a so basic function doesn’t work on the official version 1.0.