fix: Proper support for patternProperties used with unknownProperties

Author: sergeyksv

lib/revalidator.js

@@ -354,11 +354,9 @@
 
         // deleteUnknownProperties
         if (options.deleteUnknownProperties) {
-            props = schema.properties ? Object.keys(schema.properties) : [];
-            props = props.concat(schema.patternProperties ? Object.keys(schema.patternProperties) : []);
             for (p in object) {
                 if (object.hasOwnProperty(p)) {
-                    if (props.indexOf(p) === -1) {
+                    if (visitedProps.indexOf(p) === -1) {
                         delete object[p];
                     }
                 }
@@ -367,11 +365,9 @@
 
         // unknownProperties
         if (options.unknownProperties) {
-            props = schema.properties ? Object.keys(schema.properties) : [];
-            props = props.concat(schema.patternProperties ? Object.keys(schema.patternProperties) : []);
             for (p in object) {
                 if (object.hasOwnProperty(p)) {
-                    if (props.indexOf(p) === -1) {
+                    if (visitedProps.indexOf(p) === -1) {
                         if (options.unknownProperties === 'delete') {
                             delete object[p];
                         } else if (options.unknownProperties === 'error') {