update changelog

Author: skttl

CHANGELOG.md

@@ -6,6 +6,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+- Handle null value when deserializing grid value in DataValueReference 50ba85aaeeb66ed305248d303d568e4698943094
 
 ## [1.2.4] - 2020-09-09
 - Clear earlier serverside validation errors #217

src/Our.Umbraco.DocTypeGridEditor.sln

@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 15
-VisualStudioVersion = 15.0.27004.2009
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.30503.244
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Our.Umbraco.DocTypeGridEditor", "Our.Umbraco.DocTypeGridEditor\Our.Umbraco.DocTypeGridEditor.csproj", "{4BD1DB40-1B39-4966-8740-D6A39D658598}"
 EndProject
@@ -19,6 +19,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Build Package", "Build Pack
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{8412A31B-D80C-42DE-9589-4BD08F43F86B}"
 	ProjectSection(SolutionItems) = preProject
+		..\CHANGELOG.md = ..\CHANGELOG.md
 		..\CONTRIBUTING.md = ..\CONTRIBUTING.md
 		..\LICENSE.md = ..\LICENSE.md
 		..\README.md = ..\README.md