Update Build.props

eng/Build.props

@@ -1,8 +1,7 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the MIT license. See License.txt in the project root for full license information. -->
 <Project>
 
   <PropertyGroup>
+    <!-- Static graph restores projects from the parent sln file that are excluded by the slnf file: https://github.com/NuGet/Home/issues/13097. -->
     <RestoreUseStaticGraphEvaluation Condition="'$(DotNetBuildFromSource)' != 'true'">true</RestoreUseStaticGraphEvaluation>
   </PropertyGroup>