fixes tjinauyeung#115 where isValid store was not updating when using array validation

Author: DhyeyMoliya

lib/util.js

@@ -28,7 +28,7 @@ function isEmpty(object) {
 function getValues(object) {
   let result = [];
   for (const [, value] of Object.entries(object)) {
-    result = [...result, typeof value === 'object' ? getValues(value) : value];
+    result = [...result, ...(typeof value === 'object' ? getValues(value) : [value])];
   }
   return result;
 }