fix call

lib/transaction.js

@@ -389,7 +389,7 @@ function completedError(trx, obj) {
 // internal transaction resolution promise
 availablePromiseMethods().forEach(function(method) {
   Transaction.prototype[method] = function() {
-    return this.promises.library.then()[method].apply(this._promise, arguments);
+    return this._promise[method](...arguments);
   };
 });