apply_filters( 'wp_insert_term_duplicate_term_check', object $duplicate_term, string $term, string $taxonomy, array $args, int $tt_id )

2676	 * @param object $duplicate_term Duplicate term row from terms table, if found.2677	 * @param string $term           Term being inserted.2678	 * @param string $taxonomy       Taxonomy name.2679	 * @param array  $args           Arguments passed to wp_insert_term().2680	 * @param int    $tt_id          term_taxonomy_id for the newly created term.2681	 */2682	$duplicate_term = apply_filters( 'wp_insert_term_duplicate_term_check', $duplicate_term, $term, $taxonomy, $args, $tt_id );2683 2684	if ( $duplicate_term ) {2685		$wpdb->delete( $wpdb->terms, array( 'term_id' => $term_id ) );2686		$wpdb->delete( $wpdb->term_taxonomy, array( 'term_taxonomy_id' => $tt_id ) );2687 2688		$term_id = (int) $duplicate_term->term_id;