Problem with favicon changed event - possible bug

[jls28]

When a webview2 error page is displayed (example pages : https://httpbin.org/status/404, edge://abc),
no favicon changed event is generated (this will be simpler for me if was generated),
so it is like if the favicon for this page was the one from the previous page.

but a more important problem, when this error page is displayed,
go back to the previous page (normal https page with a favicon)
also never generate a favicon changed event, that's a real problem I think.

runtime version 129.0.2792.89

It is easy to reproduce even with the sample WebView2APISample,
active the option "toggle favicon event listener",
go to a normal web page with a favicon, the favicon is displayed into the window caption,
then go to an error page (edge://abc or other), the favicon displayed don't change
because there are no favicon changed event.