Ticket #23636: 23636.patch

wp-includes/taxonomy.php

@@ -1804 +1804 @@
         }
 
         if ( ! empty( $args['slug'] ) ) {
-                $slug = sanitize_title( $args['slug'] );
-                $where .= " AND t.slug = '$slug'";
+                if ( is_array( $args['slug'] ) ) {
+                        $slug = array_map( 'sanitize_title', $args['slug'] );
+                        $where .= " AND t.slug IN ('" . implode( "', '". $slug ) . "')";
+                } else {
+                        $slug = sanitize_title( $args['slug'] );
+                        $where .= " AND t.slug = '$slug'";
+                }
         }
 
         if ( ! empty( $args['name__like'] ) ) {