Wordpress-android: Publishing empty post result in undismissable progress dialog and unresponsive app

[khaykov]

Steps to reproduce the behavior

• Create a new empty post.
• Tap PUBLISH in the toolbar.
• Notice the "Saving" progress dialog and that "Can't publish empty post Toast appears for a moment"
• Confirm that dialog is not disappearing and can't be dismissed.

Might not be clear from GIF - but the progress dialog is never dismissed by itself.

Tested on Pixel 3 emulator on API 30 with the current develop branch

[hypest]

Wondering if this related to recent work on the save-on-exit. @mchowning , @malinajirka can you please have a look? Thanks!

[hypest]

Fixed with https://github.com/wordpress-mobile/WordPress-Android/pull/13381