Merge pull request #4065 from kenkouot/hotfix/clone-object-reference

Hotfix: Wrap referenced options arguments in _.clone

lib/model.js

@@ -1236,7 +1236,7 @@ Model.prototype.findById = function(param, options) {
     return Promise.resolve(null);
   }
 
-  options = options || {};
+  options = optClone(options) || {};
 
   if (typeof param === 'number' || typeof param === 'string' || Buffer.isBuffer(param)) {
     options.where = {};
@@ -1724,7 +1724,7 @@ Model.prototype.findOrCreate = function(options) {
  * @return {Promise<created>} Returns a boolean indicating whether the row was created or updated.
  */
 Model.prototype.upsert = function (values, options) {
-  options = options || {};
+  options = optClone(options) || {};
 
   if (!options.fields) {
     options.fields = Object.keys(this.attributes);
@@ -1932,7 +1932,7 @@ Model.prototype.bulkCreate = function(records, options) {
  * @see {Model#destroy} for more information
  */
 Model.prototype.truncate = function(options) {
-  options = options || {};
+  options = optClone(options) || {};
   options.truncate = true;
   return this.destroy(options);
 };