I don't known it's a bug or not.
SaveTo cannot call many time if there an entry added from memorystream.
The second time file context with that entry will be empty,
I fix them by add these line in method OpenEntryStream
SaveTo cannot call many time if there an entry added from memorystream.
The second time file context with that entry will be empty,
I fix them by add these line in method OpenEntryStream
if (stream.CanSeek)
stream.Seek(0, SeekOrigin.Begin);