Cleanup, bug fixes

Author: javiercn

src/Components/Components/src/Microsoft.AspNetCore.Components.csproj

@@ -19,7 +19,6 @@
   <ItemGroup>
     <Reference Include="Microsoft.Extensions.Logging.Abstractions" />
     <Reference Include="Microsoft.Extensions.DependencyInjection.Abstractions" />
-    <Reference Include="System.IO.Pipelines" />
   </ItemGroup>
 
   <!--

src/Components/Components/test/Lifetime/ComponentApplicationLifetimeTest.cs

@@ -4,6 +4,7 @@
 using System;
 using System.Buffers;
 using System.Collections.Generic;
+using System.Linq;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Components.Infrastructure;
 using Microsoft.AspNetCore.Components.Lifetime;
@@ -237,7 +238,8 @@ public Task<IDictionary<string, ReadOnlySequence<byte>>> GetPersistedStateAsync(
 
             public Task PersistStateAsync(IReadOnlyDictionary<string, ReadOnlySequence<byte>> state)
             {
-                State = new Dictionary<string, ReadOnlySequence<byte>>(state);
+                // We copy the data here because it's no longer available after this call completes.
+                State = state.ToDictionary(kvp => kvp.Key, kvp => new ReadOnlySequence<byte>(kvp.Value.ToArray()));
                 return Task.CompletedTask;
             }
         }