Close button [X] in TitleBar

[minh91-vn]

Describe the bug

The FluentWindow cannot be closed if using the ShowDialog function.(The close button is blinking when mouse clicked close button)
Please refer to the following video.

CloseWindowError.mp4

To Reproduce

.

Expected behavior

Can close window with close button.

Screenshots

CloseWindowError.mp4

OS version

Window 11 64bit

.NET version

.net9

WPF-UI NuGet version

WPF-UI 4.2.0

Additional context

.

[luca-domenichini]

dupe of #1647