Fix customer's API

lib/customers.js

@@ -103,14 +103,15 @@ function getComplianceTypes () {
  * @returns {object} fields enhanced with *_by and *_at fields
  */
 function enhanceOverrideFields (fields, userToken) {
-  if (!userToken) return _.extend(fields, {})
+  if (!userToken) return fields
     // Populate with computedFields (user who overrode and overriden timestamps date)
-  return _.reduce(_.assign, {}, _.map((type) => {
-    return (fields[type + '_override']) ? {
-      [type + '_override']: fields[type + '_override'],
-      [type + '_override_by']: userToken,
-      [type + '_override_at']: 'now()^'
-    } : {}
+  return _.reduce(_.assign, fields, _.map((type) => {
+    return (fields[type + '_override'])
+      ? {
+        [type + '_override_by']: userToken,
+        [type + '_override_at']: 'now()^'
+      }
+      : {}
   }, getComplianceTypes()))
 }
 
@@ -178,7 +179,7 @@ function computeStatus (customer) {
     value: customer.id_card_image_at
   }])
 
-  return _.extend(customer, {
+  return _.assign(customer, {
     status: status.label
   })
 }
@@ -211,7 +212,7 @@ function populateOverrideUsernames (customer) {
       }
     }, fieldsToUpdate)
   })
-  .then(_.reduce(_.extend, customer))
+  .then(_.reduce(_.assign, customer))
 }
 
 /**