From 0d60ebd28704a09b4eb968cd454df03fa570c345 Mon Sep 17 00:00:00 2001
From: Chaitanya Anil Kulkarni <chaitanyakul@cybage.com>
Date: Jun 23, 2017 2:37:44 PM

deprecated method getUsername()

diff --git a/src/Form/MultiStepForm.php b/src/Form/MultiStepForm.php
index 96af0b8..d09707c 100644
--- a/src/Form/MultiStepForm.php
+++ b/src/Form/MultiStepForm.php
@@ -145,7 +145,7 @@
                 $users = \Drupal::entityTypeManager()->getStorage('user')
                 ->loadByProperties(['mail' => $name]);
                 $user = reset($users);
-                $username= $user->getUsername();
+                $username= $user->getDisplayName();
                 if ($user)
                 {
                     $uid = $user->id();