From 8c18e3bf0d28b607d1790cae93493a3d55284754 Mon Sep 17 00:00:00 2001
From: Ryan Cramer <ryan@rc-d.net>
Date: Mon, 30 Apr 2018 05:56:36 -0400
Subject: [PATCH] Fix issue processwire/processwire-issues#580

---
 wire/modules/Process/ProcessUser/ProcessUser.module | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wire/modules/Process/ProcessUser/ProcessUser.module b/wire/modules/Process/ProcessUser/ProcessUser.module
index a9ef94bb..32130e7d 100644
--- a/wire/modules/Process/ProcessUser/ProcessUser.module
+++ b/wire/modules/Process/ProcessUser/ProcessUser.module
@@ -153,7 +153,7 @@ class ProcessUser extends ProcessPageType {
 			if($userAdminAll->id && !$user->hasPermission($userAdminAll)) {
 				// system has user-admin-all permission, and user doesn't have it
 				// so limit them only to the permission user-admin-[role] roles that they have assigned
-				$roles = '';
+				$roles = array();
 				foreach($user->getPermissions() as $permission) {
 					if(strpos($permission->name, 'user-admin-') !== 0) continue;
 					$roleName = str_replace('user-admin-', '', $permission->name);