From 48e56d462a43674412fa0e331c7bfc257a710c20 Mon Sep 17 00:00:00 2001
From: Andrey Savihin <andrey.savihin@onlyoffice.com>
Date: Fri, 27 Dec 2019 13:19:35 +0300
Subject: [PATCH] Api: people. Fixed "Sequence contains no elements" error
 while saving empty contacts list

---
 products/ASC.People/Server/Controllers/PeopleController.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/products/ASC.People/Server/Controllers/PeopleController.cs b/products/ASC.People/Server/Controllers/PeopleController.cs
index 53cb3ce6be..860156e8bb 100644
--- a/products/ASC.People/Server/Controllers/PeopleController.cs
+++ b/products/ASC.People/Server/Controllers/PeopleController.cs
@@ -1384,7 +1384,8 @@ namespace ASC.Employee.Core.Controllers
             PermissionContext.DemandPermissions(new UserSecurityProvider(user.ID), Constants.Action_EditUser);
 
             if (contacts == null) return;
-            user.Contacts = contacts.Select(r => $"{r.Type}|{r.Value}").Aggregate((a, b) => $"{a}|{b}");
+            var values = contacts.Where(r => !string.IsNullOrEmpty(r.Value)).Select(r => $"{r.Type}|{r.Value}");
+            user.Contacts = string.Join('|', values);
         }
 
         private void DeleteContacts(IEnumerable<Contact> contacts, UserInfo user)