Ticket #47965: 47965.1.diff

src/wp-includes/rest-api/endpoints/class-wp-rest-autosaves-controller.php

@@ -349 +349 @@
                         $autosave_is_different = false;
 
                         foreach ( array_intersect( array_keys( $new_autosave ), array_keys( _wp_post_revision_fields( $post ) ) ) as $field ) {
-                                if ( normalize_whitespace( $new_autosave[ $field ] ) != normalize_whitespace( $post->$field ) ) {
+                                if ( normalize_whitespace( $new_autosave[ $field ] ) !== normalize_whitespace( $post->$field ) ) {
                                         $autosave_is_different = true;
                                         break;
                                 }