Rename on Type: linked edit mode is terminated when the tag becomes empty

[ornelladotcom]

Testing #105760

Repro:
on macOS
set Rename on Type to true in both user and workspace
Create HTML file
Try changing opening tag

Didn't see any syncing happening, I also tried changing the closing tag and did not see syncing.

[ornelladotcom]

It did work for me when I highlighted the entire tag name and typed in a new tag name. It also worked when pasting in a character into the middle of the tag name.

For undo, it required two undos if my cursor was still within the tag name, but if I clicked out, it worked with one undo.

[aeschli]

In the screencast, when you delete head you see that the closing tag is modified as well.
But it's a bug that the sync mode ends once the tag is empty. I'll look at that.