Drupal Password legacy module - fix $roles value on submit

drupal.password_policy.8.x-3.0-alpha4-fix-roles-value-on-submit.patch

Index: password_policy.module
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- password_policy.module	(date 1531830899000)
+++ password_policy.module	(date 1531830899000)
@@ -170,6 +170,10 @@
   }
 
   $roles = $form_state->getValue('roles');
+  if (!empty($roles) && !isset($roles[0])) {
+    $roles = array_filter($roles);
+    $roles = array_keys($roles);
+  }
   if (empty($roles)) {
     // Get if from $form; form state is always empty the first time.
     $roles = $form['account']['roles']['#default_value'];