Ticket #17025: 17025.6.diff

src/wp-includes/author-template.php

@@ -350 +350 @@
         $return = '';
 
         $query_args = wp_array_slice_assoc( $args, array( 'orderby', 'order', 'number', 'exclude', 'include' ) );
-        $query_args['fields'] = 'ids';
-        $authors = get_users( $query_args );
 
         $author_count = array();
-        foreach ( (array) $wpdb->get_results( "SELECT DISTINCT post_author, COUNT(ID) AS count FROM $wpdb->posts WHERE post_type = 'post' AND " . get_private_posts_cap_sql( 'post' ) . " GROUP BY post_author" ) as $row ) {
+
+        $rows = $wpdb->get_results( "SELECT DISTINCT post_author, COUNT(ID) AS count FROM $wpdb->posts WHERE post_type = 'post' AND " . get_private_posts_cap_sql( 'post' ) . " GROUP BY post_author" );
+
+        foreach ( $rows as $row ) {
                 $author_count[$row->post_author] = $row->count;
         }
+
+        if ( $hide_empty ) {
+                $query_args['include'] = wp_list_pluck( $rows, 'post_author' );
+        } else {
+                $query_args['fields'] = 'ids';
+        }
+
+        /**
+         * Filter the found list of authors.
+         *
+         * @since 4.0.0
+         *
+         * @param array $authors    Array of WP_User objects for found authors.
+         * @param array $query_args User query arguments.
+         */
+        $authors = apply_filters( 'wp_list_authors', get_users( $query_args ), $query_args );
+
         foreach ( $authors as $author_id ) {
                 $author = get_userdata( $author_id );