Merge pull request #6038 from crobibero/delete-existing-sessions

Don't logout if deviceId is null

Emby.Server.Implementations/Session/SessionManager.cs

@@ -1542,6 +1542,8 @@ namespace Emby.Server.Implementations.Session
                     Limit = 1
                 }).Items.FirstOrDefault();
 
+            if (!string.IsNullOrEmpty(deviceId))
+            {
                 var allExistingForDevice = _authRepo.Get(
                     new AuthenticationInfoQuery
                     {
@@ -1562,6 +1564,7 @@ namespace Emby.Server.Implementations.Session
                         }
                     }
                 }
+            }
 
             if (existing != null)
             {