Ticket #52314: 52314-2.diff

src/wp-admin/admin-header.php

@@ -57 +57 @@
         $admin_title = sprintf( __( 'Recovery Mode — %s' ), $admin_title );
 }
 
+if ( 'post' === $current_screen->base ) {
+        $post_title = get_the_title();
+        if ( 'Untitled' === $post_title ) {
+                /* translators: Editor admin screen title. %s: Post type name. */
+                $admin_title = sprintf( __( 'Add %s' ), ucwords( get_post_type() ) );
+        } else {
+                /* translators: Editor admin screen title. %s: Post title. */
+                $admin_title = sprintf( __( 'Edit: "%s"' ), get_the_title() );
+        }
+}
+
 /**
  * Filters the title tag content for an admin page.
  *