Introduce `'pre_delete_term'` hook.

Props cmmarslender.
Fixes #30127.
Built from https://develop.svn.wordpress.org/trunk@30088


git-svn-id: http://core.svn.wordpress.org/trunk@30088 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/taxonomy.php

@@ -2417,6 +2417,16 @@ function wp_delete_term( $term, $taxonomy, $args = array() ) {
 		$force_default = $args['force_default'];
 	}
 
+	/**
+	 * Fires when deleting a term, before any modifications are made to posts or terms.
+	 *
+	 * @since 4.1.0
+	 *
+	 * @param int $term Term ID
+	 * @param string $taxonomy Taxonomy Name
+	 */
+	do_action( 'pre_delete_term', $term, $taxonomy );
+
 	// Update children to point to new parent
 	if ( is_taxonomy_hierarchical($taxonomy) ) {
 		$term_obj = get_term($term, $taxonomy);

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.1-alpha-30087';
+$wp_version = '4.1-alpha-30088';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.