AccessKey causes access violation after releasing Alt key

[shinta0806]

Describe the bug

Assign AccessKey to the window close button, press and release the Alt key, and then press AccessKey result in an access violation.

Pressing the Alt key and the AccessKey at the same time will not result in an access violation.

Steps to reproduce the bug

1. Assign AccessKey to the window close button.
2. Press the Alt key.
3. Relase the Alt key.
4. Press AccessKey.

Visual Studio's output window:
プログラム '[21908] TestAccessKey.exe' はコード 3221225477 (0xc0000005) 'Access violation' で終了しました。

Sample program in GitHub:
https://github.com/shinta0806/TestAccessKey

Expected behavior

No response

Screenshots

NuGet package version

WinUI 3 - Windows App SDK 1.3.2: 1.3.230602002

Windows version

Windows 11 (22H2): Build 22621

Additional context

No response

[JJBrychell]

Pressing the Alt-key causes the page to enter access key mode (where the keytips are displayed). Once a key is activated and its action taken, the page attempts to leave this mode, but if page is in the middle of destruction some things can get confused.

The fix is in and schedule for 1.5

[shinta0806]

I have updated the Windows App SDK for the sample program to Ver 1.5 (1.5.240227000) and confirmed that the problem has been resolved.
Thank you!