Ticket #35381: 35381.3.patch

src/wp-includes/class-wp-term-query.php

@@ -643 +643 @@
                 }
 
                 if ( empty( $terms ) ) {
-                        wp_cache_add( $cache_key, array(), 'terms', DAY_IN_SECONDS );
+                        wp_cache_add( $cache_key, array(), 'terms' );
                         return array();
                 }
 
@@ -719 +719 @@
                         }
                 }
 
-                wp_cache_add( $cache_key, $terms, 'terms', DAY_IN_SECONDS );
+                $term_ids = wp_list_pluck( $terms, 'term_id' );
+                wp_cache_add( $cache_key, $term_ids, 'terms' );
 
                 if ( 'all' === $_fields ) {
                         $terms = array_map( 'get_term', $terms );