Fix bundle saving

aianlinb/VisualGGPK2@8931f49#commitcomment-49913052

Author: aianlinb

LibBundle/LibBundle.csproj

@@ -4,7 +4,7 @@
     <TargetFramework>net5.0</TargetFramework>
     <Authors>aianlinb</Authors>
     <Copyright>Copyright © 2020-2021 aianlinb.</Copyright>
-    <AssemblyVersion>2.4.4.0</AssemblyVersion>
+    <AssemblyVersion>2.4.6.0</AssemblyVersion>
     <Platforms>x64</Platforms>
     <EnforceCodeStyleInBuild>true</EnforceCodeStyleInBuild>
   </PropertyGroup>

LibBundle/Records/BundleRecord.cs

@@ -107,6 +107,8 @@ public virtual void SaveWithRecompression(string newPath = null, string original
             if (newPath == null && originalPath == null && Bundle.path == null)
                 throw new ArgumentNullException();
             var data = Bundle.Read(originalPath);
+            data.SetLength(validSize);
+            data.Position = validSize;
             foreach (var d in FileToAdd) {
                 d.Key.Offset = (int)data.Position;
                 data.Write(d.Value, 0, d.Key.Size);
@@ -120,11 +122,12 @@ public virtual byte[] SaveWithRecompression(BinaryReader br, long? Offset = null
             Read(br, Offset);
             var data = Bundle.Read(br);
             data.SetLength(validSize);
+            data.Position = validSize;
             foreach (var (f, b) in FileToAdd) {
                 f.Offset = (int)data.Position;
                 data.Write(b, 0, f.Size);
             }
-            UncompressedSize = (int)data.Length;
+            UncompressedSize = validSize = (int)data.Length;
             var result = Bundle.Save(data);
             FileToAdd.Clear();
             data.Close();