In #45215 the template and template part editors gained a button that links to the revisions screen for the edited template and template part.

The problem is that in the revisions screen there are two links that should link back to the editor which don't work (one with the template name and another one with the text "go to editor").

In the post editor (block editor) going to the revisions screen will set these links to a shape of:

/wp-admin/post.php?post=3594&action=edit

In the template editor going to the revisions screen will set these links to a shape of:

/wp-admin/revision.php?revision=4068&gutenberg=true, which is the URI of the revisions screen itself.

This is a blocker for https://core.trac.wordpress.org/ticket/57704
There is a corresponding core ticket at https://core.trac.wordpress.org/ticket/57709