New Post: SaveTo cannot call many time if there an entry added from memorystream.

Here is example

using (var arc = ZipArchive.Create())
{
    string str = "test.txt";
    var source = new MemoryStream(Encoding.UTF8.GetBytes(str));
    arc.AddEntry("test.txt", source, true, source.Length, null);
    arc.SaveTo(@"D:\a.zip", new CompressionInfo());
    arc.SaveTo(@"D:\b.zip", new CompressionInfo());
 }

test.txt in b.zip will be empty.

I think reset them only affect new files.
Old files always reset each time I call OpenEntryStream (or create a new stream? I didn't view so much code).
test code

var entry = arc.Entries.where(v => v.FilePath == "exist.txt");
Console.WriteLine(new StreamReader(entry.OpenEntryStream()).ReadToEnd());
Console.WriteLine(new StreamReader(entry.OpenEntryStream()).ReadToEnd());
Console.WriteLine(new StreamReader(entry.OpenEntryStream()).ReadToEnd());

if file is exist before open, the output of second and third time are same as first time.
if new added, second and third time will output empty string.