apply_filters( 'wp_save_post_revision_check_for_changes', bool $check_for_changes, WP_Post $latest_revision, WP_Post $post )

180		 *181		 * @param bool    $check_for_changes Whether to check for changes before saving a new revision.182		 *                                   Default true.183		 * @param WP_Post $latest_revision   The latest revision post object.184		 * @param WP_Post $post              The post object.185		 */186		if ( isset( $latest_revision ) && apply_filters( 'wp_save_post_revision_check_for_changes', true, $latest_revision, $post ) ) {187			$post_has_changed = false;188 189			foreach ( array_keys( _wp_post_revision_fields( $post ) ) as $field ) {190				if ( normalize_whitespace( maybe_serialize( $post->$field ) ) !== normalize_whitespace( maybe_serialize( $latest_revision->$field ) ) ) {191					$post_has_changed = true;192					break;