Replaced Object.hasOwnProperty usages with loadsh _.has for safe access

Author: Vishal Shingala

lib/31XUtils/schemaUtils31X.js

@@ -154,9 +154,11 @@ module.exports = {
     const resolvedSchema = _.cloneDeep(refSchema),
       outerKeys = Object.keys(outerProps);
     outerKeys.forEach((key) => {
-      resolvedSchema[key] = (resolvedSchema[key] && Array.isArray(resolvedSchema[key])) ?
-        [...new Set([...resolvedSchema[key], ...outerProps[key]])] :
-        outerProps[key];
+      if (_.has(resolvedSchema, key)) {
+        resolvedSchema[key] = (resolvedSchema[key] && Array.isArray(resolvedSchema[key])) ?
+          [...new Set([...resolvedSchema[key], ...outerProps[key]])] :
+          outerProps[key];
+      }
     });
     return resolvedSchema;
   }