Site Editor: Navigating back after trashing a page brings to empty Navigator screen

[afercia]

Description

There have been a few issues and still there are some open issues about the Site editor 'drill-down' Navigator. Seems there is still no consensus on whether navigating backshould bring to the parent object or to the referring page Cc @youknowriad
See for example:
#50676
#50676
#52665
#51421

I think I stumbled upon a new scenario where users will find themselves in an almost deed-end. After a page is moved to the trash, going back brings you to a state where the Navigator panel is totally blank.

Step-by-step reproduction instructions

• Go to Site editor > pages > any Page
• From the Action menu, move the page to the trash
• The navigator screen goes back to the Pages list
• Select another page and move it to the trash
• The navigator screen goes back to the Pages list
• Click the Back button placed before the Pages title
• The navigator screen is now blank (it attempts to go back to a page that is now in the trash)
• At this point the navigator doesn't show anything, not even the Back button
• The only workaround is to use the browser Back button or the keyboard shortcut to navigate back in the browser, on a macBook it's Cmd + [
• On the first Cmd + [ press, the Navigstor shows the Pages list
• Press Cmd + [ again
• The navigator screen is blank (it attempts to go back to a page that is now in the trash)

Screenshots, screen recording, code snippet

No response

Environment info

No response

Please confirm that you have searched existing issues in the repo.

Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

Yes