From 5037b59d4d0841a6f82f41157e5dd369e89e4862 Mon Sep 17 00:00:00 2001
From: azakhi <azak.halilibrahim@gmail.com>
Date: Thu, 6 Dec 2018 00:50:37 +0300
Subject: [PATCH] Fix null reference error on section search

---
 Filtration/ViewModels/ItemFilterScriptViewModel.cs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Filtration/ViewModels/ItemFilterScriptViewModel.cs b/Filtration/ViewModels/ItemFilterScriptViewModel.cs
index cb4e7d1..60d7d5c 100644
--- a/Filtration/ViewModels/ItemFilterScriptViewModel.cs
+++ b/Filtration/ViewModels/ItemFilterScriptViewModel.cs
@@ -578,6 +578,9 @@ namespace Filtration.ViewModels
 
         public bool CanModifyBlock(IItemFilterBlockViewModelBase itemFilterBlock)
         {
+            if (itemFilterBlock == null)
+                return false;
+
             if (itemFilterBlock is IItemFilterBlockViewModel)
                 return true;