From d1e1aef5f796ff5c25338d44cb4f6a7aadf24af4 Mon Sep 17 00:00:00 2001
From: Bond_009 <bond.009@outlook.com>
Date: Wed, 26 Feb 2020 18:19:34 +0100
Subject: [PATCH] Fix possible race condition

---
 MediaBrowser.Providers/Manager/ProviderManager.cs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/MediaBrowser.Providers/Manager/ProviderManager.cs b/MediaBrowser.Providers/Manager/ProviderManager.cs
index ae1e0492bf..4f1513df34 100644
--- a/MediaBrowser.Providers/Manager/ProviderManager.cs
+++ b/MediaBrowser.Providers/Manager/ProviderManager.cs
@@ -970,9 +970,8 @@ namespace MediaBrowser.Providers.Manager
             var id = item.Id;
             _logger.LogInformation("OnRefreshProgress {0} {1}", id.ToString("N", CultureInfo.InvariantCulture), progress);
 
-            if (_activeRefreshes.ContainsKey(id))
+            if (_activeRefreshes.TryAdd(id, progress))
             {
-                _activeRefreshes[id] = progress;
                 RefreshProgress?.Invoke(this, new GenericEventArgs<Tuple<BaseItem, double>>(new Tuple<BaseItem, double>(item, progress)));
             }
             else