From c3d5d4c0cecddc41a5fcdf7b18c1ccd7de87df84 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BC=98=E9=9F=AC=20=E5=BC=A0?= <hongtao_zhang@outlook.com>
Date: Fri, 4 Dec 2020 22:24:25 +0800
Subject: [PATCH] Don't update collection when both newItems and collection is
 empty

---
 Flow.Launcher/ViewModel/ResultsViewModel.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Flow.Launcher/ViewModel/ResultsViewModel.cs b/Flow.Launcher/ViewModel/ResultsViewModel.cs
index f12ea23e9..fc77327cc 100644
--- a/Flow.Launcher/ViewModel/ResultsViewModel.cs
+++ b/Flow.Launcher/ViewModel/ResultsViewModel.cs
@@ -333,7 +333,7 @@ namespace Flow.Launcher.ViewModel
             public void Update(List<ResultViewModel> newItems, CancellationToken token = default)
             {
                 _token = token;
-                if (_token.IsCancellationRequested)
+                if (Count == 0 && newItems.Count == 0 || _token.IsCancellationRequested)
                     return;
 
                 if (editTime < 5 || newItems.Count < 30)