diff -r be944660c56a -r 3d72ae0968f4 wp/wp-includes/class-wp-network-query.php
--- a/wp/wp-includes/class-wp-network-query.php	Wed Sep 21 18:19:35 2022 +0200
+++ b/wp/wp-includes/class-wp-network-query.php	Tue Sep 27 16:37:53 2022 +0200
@@ -158,7 +158,7 @@
 		 *
 		 * @since 4.6.0
 		 *
-		 * @param WP_Network_Query $this The WP_Network_Query instance (passed by reference).
+		 * @param WP_Network_Query $query The WP_Network_Query instance (passed by reference).
 		 */
 		do_action_ref_array( 'parse_network_query', array( &$this ) );
 	}
@@ -193,7 +193,7 @@
 		 *
 		 * @since 4.6.0
 		 *
-		 * @param WP_Network_Query $this Current instance of WP_Network_Query (passed by reference).
+		 * @param WP_Network_Query $query Current instance of WP_Network_Query (passed by reference).
 		 */
 		do_action_ref_array( 'pre_get_networks', array( &$this ) );
 
@@ -242,8 +242,8 @@
 		// $args can include anything. Only use the args defined in the query_var_defaults to compute the key.
 		$_args = wp_array_slice_assoc( $this->query_vars, array_keys( $this->query_var_defaults ) );
 
-		// Ignore the $fields argument as the queried result will be the same regardless.
-		unset( $_args['fields'] );
+		// Ignore the $fields, $update_network_cache arguments as the queried result will be the same regardless.
+		unset( $_args['fields'], $_args['update_network_cache'] );
 
 		$key          = md5( serialize( $_args ) );
 		$last_changed = wp_cache_get_last_changed( 'networks' );
@@ -438,17 +438,17 @@
 
 		$groupby = '';
 
-		$pieces = array( 'fields', 'join', 'where', 'orderby', 'limits', 'groupby' );
+		$clauses = array( 'fields', 'join', 'where', 'orderby', 'limits', 'groupby' );
 
 		/**
 		 * Filters the network query clauses.
 		 *
 		 * @since 4.6.0
 		 *
-		 * @param string[]         $pieces An associative array of network query clauses.
-		 * @param WP_Network_Query $query  Current instance of WP_Network_Query (passed by reference).
+		 * @param string[]         $clauses An associative array of network query clauses.
+		 * @param WP_Network_Query $query   Current instance of WP_Network_Query (passed by reference).
 		 */
-		$clauses = apply_filters_ref_array( 'networks_clauses', array( compact( $pieces ), &$this ) );
+		$clauses = apply_filters_ref_array( 'networks_clauses', array( compact( $clauses ), &$this ) );
 
 		$fields  = isset( $clauses['fields'] ) ? $clauses['fields'] : '';
 		$join    = isset( $clauses['join'] ) ? $clauses['join'] : '';
@@ -480,7 +480,14 @@
 		$this->sql_clauses['orderby'] = $orderby;
 		$this->sql_clauses['limits']  = $limits;
 
-		$this->request = "{$this->sql_clauses['select']} {$this->sql_clauses['from']} {$where} {$this->sql_clauses['groupby']} {$this->sql_clauses['orderby']} {$this->sql_clauses['limits']}";
+		$this->request = "
+			{$this->sql_clauses['select']}
+			{$this->sql_clauses['from']}
+			{$where}
+			{$this->sql_clauses['groupby']}
+			{$this->sql_clauses['orderby']}
+			{$this->sql_clauses['limits']}
+		";
 
 		if ( $this->query_vars['count'] ) {
 			return (int) $wpdb->get_var( $this->request );
@@ -524,14 +531,14 @@
 	 *
 	 * @global wpdb $wpdb WordPress database abstraction object.
 	 *
-	 * @param string   $string  Search string.
+	 * @param string   $search  Search string.
 	 * @param string[] $columns Array of columns to search.
 	 * @return string Search SQL.
 	 */
-	protected function get_search_sql( $string, $columns ) {
+	protected function get_search_sql( $search, $columns ) {
 		global $wpdb;
 
-		$like = '%' . $wpdb->esc_like( $string ) . '%';
+		$like = '%' . $wpdb->esc_like( $search ) . '%';
 
 		$searches = array();
 		foreach ( $columns as $column ) {