apply_filters( 'wp_unique_post_slug_is_bad_attachment_slug', bool $bad_slug, string $slug )

5506		 *5507		 * @since 3.1.05508		 *5509		 * @param bool   $bad_slug Whether the slug would be bad as an attachment slug.5510		 * @param string $slug     The post slug.5511		 */5512		$is_bad_attachment_slug = apply_filters( 'wp_unique_post_slug_is_bad_attachment_slug', false, $slug );5513 5514		if ( $post_name_check5515			|| in_array( $slug, $feeds, true ) || 'embed' === $slug5516			|| $is_bad_attachment_slug5517		) {5518			$suffix = 2;